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Finding the Fourth Proportional to 495,000.20, 742,500.30 and 295,545.80

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Solution

The fourth proportional to 495,000.20, 742,500.30 and 295,545.80 is: 443,318.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,000.20 : 742,500.30 = 295,545.80 : x
  2. Step 2: Convert to fraction form
    495,000.20/742,500.30 = 295,545.80/x
  3. Step 3: Cross multiply
    495,000.20x = 742,500.30 × 295,545.80
  4. Step 4: Simplify right side
    495,000.20x = 219,442,845,163.74
  5. Step 5: Solve for x
    x = 219,442,845,163.74/495,000.20
  6. Step 6: Final answer
    x = 443,318.70

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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.