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Finding the Fourth Proportional to 663,695.20, 995,427.60 and 242,754.40

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Solution

The fourth proportional to 663,695.20, 995,427.60 and 242,754.40 is: 364,089.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,695.20 : 995,427.60 = 242,754.40 : x
  2. Step 2: Convert to fraction form
    663,695.20/995,427.60 = 242,754.40/x
  3. Step 3: Cross multiply
    663,695.20x = 995,427.60 × 242,754.40
  4. Step 4: Simplify right side
    663,695.20x = 241,644,429,781.44
  5. Step 5: Solve for x
    x = 241,644,429,781.44/663,695.20
  6. Step 6: Final answer
    x = 364,089.46

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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.