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Finding the Fourth Proportional to 495,001.80, 742,502.70 and 443,680.20

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Solution

The fourth proportional to 495,001.80, 742,502.70 and 443,680.20 is: 665,520.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,001.80 : 742,502.70 = 443,680.20 : x
  2. Step 2: Convert to fraction form
    495,001.80/742,502.70 = 443,680.20/x
  3. Step 3: Cross multiply
    495,001.80x = 742,502.70 × 443,680.20
  4. Step 4: Simplify right side
    495,001.80x = 329,433,746,436.54
  5. Step 5: Solve for x
    x = 329,433,746,436.54/495,001.80
  6. Step 6: Final answer
    x = 665,520.30

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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.