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Finding the Fourth Proportional to 539,661.48, 744,040.58 and 442,507.40

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Solution

The fourth proportional to 539,661.48, 744,040.58 and 442,507.40 is: 610,092.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,661.48 : 744,040.58 = 442,507.40 : x
  2. Step 2: Convert to fraction form
    539,661.48/744,040.58 = 442,507.40/x
  3. Step 3: Cross multiply
    539,661.48x = 744,040.58 × 442,507.40
  4. Step 4: Simplify right side
    539,661.48x = 329,243,462,550.29
  5. Step 5: Solve for x
    x = 329,243,462,550.29/539,661.48
  6. Step 6: Final answer
    x = 610,092.58

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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.