Home / 712,008.20-1,069,241.10-380,232.20

Finding the Fourth Proportional to 712,008.20, 1,069,241.10 and 380,232.20

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Solution

The fourth proportional to 712,008.20, 1,069,241.10 and 380,232.20 is: 571,004.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,008.20 : 1,069,241.10 = 380,232.20 : x
  2. Step 2: Convert to fraction form
    712,008.20/1,069,241.10 = 380,232.20/x
  3. Step 3: Cross multiply
    712,008.20x = 1,069,241.10 × 380,232.20
  4. Step 4: Simplify right side
    712,008.20x = 406,559,895,783.42
  5. Step 5: Solve for x
    x = 406,559,895,783.42/712,008.20
  6. Step 6: Final answer
    x = 571,004.51

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Half scale
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Double scale
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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.