Home / 1,005,430.08-1,387,517.13-546,570.75

Finding the Fourth Proportional to 1,005,430.08, 1,387,517.13 and 546,570.75

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Solution

The fourth proportional to 1,005,430.08, 1,387,517.13 and 546,570.75 is: 754,280.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,430.08 : 1,387,517.13 = 546,570.75 : x
  2. Step 2: Convert to fraction form
    1,005,430.08/1,387,517.13 = 546,570.75/x
  3. Step 3: Cross multiply
    1,005,430.08x = 1,387,517.13 × 546,570.75
  4. Step 4: Simplify right side
    1,005,430.08x = 758,376,278,381.95
  5. Step 5: Solve for x
    x = 758,376,278,381.95/1,005,430.08
  6. Step 6: Final answer
    x = 754,280.48

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.