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Finding the Fourth Proportional to 539,349.80, 744,289 and 297,629.20

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Solution

The fourth proportional to 539,349.80, 744,289 and 297,629.20 is: 410,720.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,349.80 : 744,289 = 297,629.20 : x
  2. Step 2: Convert to fraction form
    539,349.80/744,289 = 297,629.20/x
  3. Step 3: Cross multiply
    539,349.80x = 744,289 × 297,629.20
  4. Step 4: Simplify right side
    539,349.80x = 221,522,139,638.80
  5. Step 5: Solve for x
    x = 221,522,139,638.80/539,349.80
  6. Step 6: Final answer
    x = 410,720.72

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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.