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Finding the Fourth Proportional to 560,031.20, 840,046.80 and 204,927.20

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Solution

The fourth proportional to 560,031.20, 840,046.80 and 204,927.20 is: 307,390.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,031.20 : 840,046.80 = 204,927.20 : x
  2. Step 2: Convert to fraction form
    560,031.20/840,046.80 = 204,927.20/x
  3. Step 3: Cross multiply
    560,031.20x = 840,046.80 × 204,927.20
  4. Step 4: Simplify right side
    560,031.20x = 172,148,438,592.96
  5. Step 5: Solve for x
    x = 172,148,438,592.96/560,031.20
  6. Step 6: Final answer
    x = 307,390.80

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1.5x scale

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.