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Finding the Fourth Proportional to 718,995.60, 992,532.12 and 464,470.80

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Solution

The fourth proportional to 718,995.60, 992,532.12 and 464,470.80 is: 641,175.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,995.60 : 992,532.12 = 464,470.80 : x
  2. Step 2: Convert to fraction form
    718,995.60/992,532.12 = 464,470.80/x
  3. Step 3: Cross multiply
    718,995.60x = 992,532.12 × 464,470.80
  4. Step 4: Simplify right side
    718,995.60x = 461,002,187,802.10
  5. Step 5: Solve for x
    x = 461,002,187,802.10/718,995.60
  6. Step 6: Final answer
    x = 641,175.26

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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.