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Finding the Fourth Proportional to 384,981.60, 577,472.40 and 104,498.40

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Solution

The fourth proportional to 384,981.60, 577,472.40 and 104,498.40 is: 156,747.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,981.60 : 577,472.40 = 104,498.40 : x
  2. Step 2: Convert to fraction form
    384,981.60/577,472.40 = 104,498.40/x
  3. Step 3: Cross multiply
    384,981.60x = 577,472.40 × 104,498.40
  4. Step 4: Simplify right side
    384,981.60x = 60,344,941,844.16
  5. Step 5: Solve for x
    x = 60,344,941,844.16/384,981.60
  6. Step 6: Final answer
    x = 156,747.60

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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.