Home / 1,214,257.80-1,821,386.70-372,700.20

Finding the Fourth Proportional to 1,214,257.80, 1,821,386.70 and 372,700.20

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Solution

The fourth proportional to 1,214,257.80, 1,821,386.70 and 372,700.20 is: 559,050.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,257.80 : 1,821,386.70 = 372,700.20 : x
  2. Step 2: Convert to fraction form
    1,214,257.80/1,821,386.70 = 372,700.20/x
  3. Step 3: Cross multiply
    1,214,257.80x = 1,821,386.70 × 372,700.20
  4. Step 4: Simplify right side
    1,214,257.80x = 678,831,187,367.34
  5. Step 5: Solve for x
    x = 678,831,187,367.34/1,214,257.80
  6. Step 6: Final answer
    x = 559,050.30

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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.