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Finding the Fourth Proportional to 678,951.20, 936,952.88 and 373,047.16

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Solution

The fourth proportional to 678,951.20, 936,952.88 and 373,047.16 is: 514,805.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,951.20 : 936,952.88 = 373,047.16 : x
  2. Step 2: Convert to fraction form
    678,951.20/936,952.88 = 373,047.16/x
  3. Step 3: Cross multiply
    678,951.20x = 936,952.88 × 373,047.16
  4. Step 4: Simplify right side
    678,951.20x = 349,527,610,937.82
  5. Step 5: Solve for x
    x = 349,527,610,937.82/678,951.20
  6. Step 6: Final answer
    x = 514,805.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.