Home / 712,910.30-1,069,365.45-214,274.30

Finding the Fourth Proportional to 712,910.30, 1,069,365.45 and 214,274.30

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Solution

The fourth proportional to 712,910.30, 1,069,365.45 and 214,274.30 is: 321,411.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,910.30 : 1,069,365.45 = 214,274.30 : x
  2. Step 2: Convert to fraction form
    712,910.30/1,069,365.45 = 214,274.30/x
  3. Step 3: Cross multiply
    712,910.30x = 1,069,365.45 × 214,274.30
  4. Step 4: Simplify right side
    712,910.30x = 229,137,533,242.94
  5. Step 5: Solve for x
    x = 229,137,533,242.94/712,910.30
  6. Step 6: Final answer
    x = 321,411.45

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Half scale
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Double scale
Find fourth proportional to 712,911.30, 1,069,366.95 and 214,275.30
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.