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Finding the Fourth Proportional to 560,472.37, 840,702.98 and 256,780.37

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Solution

The fourth proportional to 560,472.37, 840,702.98 and 256,780.37 is: 385,168.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,472.37 : 840,702.98 = 256,780.37 : x
  2. Step 2: Convert to fraction form
    560,472.37/840,702.98 = 256,780.37/x
  3. Step 3: Cross multiply
    560,472.37x = 840,702.98 × 256,780.37
  4. Step 4: Simplify right side
    560,472.37x = 215,876,025,008.21
  5. Step 5: Solve for x
    x = 215,876,025,008.21/560,472.37
  6. Step 6: Final answer
    x = 385,168.01

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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.