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Finding the Fourth Proportional to 453,370.20, 679,472.10 and 275,688.60

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Solution

The fourth proportional to 453,370.20, 679,472.10 and 275,688.60 is: 413,178.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,370.20 : 679,472.10 = 275,688.60 : x
  2. Step 2: Convert to fraction form
    453,370.20/679,472.10 = 275,688.60/x
  3. Step 3: Cross multiply
    453,370.20x = 679,472.10 × 275,688.60
  4. Step 4: Simplify right side
    453,370.20x = 187,322,711,988.06
  5. Step 5: Solve for x
    x = 187,322,711,988.06/453,370.20
  6. Step 6: Final answer
    x = 413,178.26

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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.