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Finding the Fourth Proportional to 717,951.59, 990,768.13 and 395,662.04

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Solution

The fourth proportional to 717,951.59, 990,768.13 and 395,662.04 is: 546,010.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,951.59 : 990,768.13 = 395,662.04 : x
  2. Step 2: Convert to fraction form
    717,951.59/990,768.13 = 395,662.04/x
  3. Step 3: Cross multiply
    717,951.59x = 990,768.13 × 395,662.04
  4. Step 4: Simplify right side
    717,951.59x = 392,009,339,482.79
  5. Step 5: Solve for x
    x = 392,009,339,482.79/717,951.59
  6. Step 6: Final answer
    x = 546,010.82

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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.