Home / 1,755,126.20-2,632,689.29-425,430.20

Finding the Fourth Proportional to 1,755,126.20, 2,632,689.29 and 425,430.20

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Solution

The fourth proportional to 1,755,126.20, 2,632,689.29 and 425,430.20 is: 638,145.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,755,126.20 : 2,632,689.29 = 425,430.20 : x
  2. Step 2: Convert to fraction form
    1,755,126.20/2,632,689.29 = 425,430.20/x
  3. Step 3: Cross multiply
    1,755,126.20x = 2,632,689.29 × 425,430.20
  4. Step 4: Simplify right side
    1,755,126.20x = 1,120,025,515,891.96
  5. Step 5: Solve for x
    x = 1,120,025,515,891.96/1,755,126.20
  6. Step 6: Final answer
    x = 638,145.29

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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.