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Finding the Fourth Proportional to 719,537.97, 992,963.88 and 397,248.69

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Solution

The fourth proportional to 719,537.97, 992,963.88 and 397,248.69 is: 548,204.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,537.97 : 992,963.88 = 397,248.69 : x
  2. Step 2: Convert to fraction form
    719,537.97/992,963.88 = 397,248.69/x
  3. Step 3: Cross multiply
    719,537.97x = 992,963.88 × 397,248.69
  4. Step 4: Simplify right side
    719,537.97x = 394,453,600,547.32
  5. Step 5: Solve for x
    x = 394,453,600,547.32/719,537.97
  6. Step 6: Final answer
    x = 548,204.01

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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.