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Finding the Fourth Proportional to 539,617.28, 744,722.52 and 403,415.36

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Solution

The fourth proportional to 539,617.28, 744,722.52 and 403,415.36 is: 556,751.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,617.28 : 744,722.52 = 403,415.36 : x
  2. Step 2: Convert to fraction form
    539,617.28/744,722.52 = 403,415.36/x
  3. Step 3: Cross multiply
    539,617.28x = 744,722.52 × 403,415.36
  4. Step 4: Simplify right side
    539,617.28x = 300,432,503,505.91
  5. Step 5: Solve for x
    x = 300,432,503,505.91/539,617.28
  6. Step 6: Final answer
    x = 556,751.08

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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.