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Finding the Fourth Proportional to 539,707.59, 744,825.51 and 297,989.28

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Solution

The fourth proportional to 539,707.59, 744,825.51 and 297,989.28 is: 411,241.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,707.59 : 744,825.51 = 297,989.28 : x
  2. Step 2: Convert to fraction form
    539,707.59/744,825.51 = 297,989.28/x
  3. Step 3: Cross multiply
    539,707.59x = 744,825.51 × 297,989.28
  4. Step 4: Simplify right side
    539,707.59x = 221,950,017,450.53
  5. Step 5: Solve for x
    x = 221,950,017,450.53/539,707.59
  6. Step 6: Final answer
    x = 411,241.24

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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.