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Finding the Fourth Proportional to 478,458.70, 717,760.64 and 162,841.79

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Solution

The fourth proportional to 478,458.70, 717,760.64 and 162,841.79 is: 244,287.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,458.70 : 717,760.64 = 162,841.79 : x
  2. Step 2: Convert to fraction form
    478,458.70/717,760.64 = 162,841.79/x
  3. Step 3: Cross multiply
    478,458.70x = 717,760.64 × 162,841.79
  4. Step 4: Simplify right side
    478,458.70x = 116,881,429,610.65
  5. Step 5: Solve for x
    x = 116,881,429,610.65/478,458.70
  6. Step 6: Final answer
    x = 244,287.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.