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Finding the Fourth Proportional to 632,349.66, 947,615 and 272,421.68

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Solution

The fourth proportional to 632,349.66, 947,615 and 272,421.68 is: 408,240.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,349.66 : 947,615 = 272,421.68 : x
  2. Step 2: Convert to fraction form
    632,349.66/947,615 = 272,421.68/x
  3. Step 3: Cross multiply
    632,349.66x = 947,615 × 272,421.68
  4. Step 4: Simplify right side
    632,349.66x = 258,150,870,293.20
  5. Step 5: Solve for x
    x = 258,150,870,293.20/632,349.66
  6. Step 6: Final answer
    x = 408,240.70

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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.