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Finding the Fourth Proportional to 560,468.96, 840,697.89 and 256,776.97

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Solution

The fourth proportional to 560,468.96, 840,697.89 and 256,776.97 is: 385,162.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,468.96 : 840,697.89 = 256,776.97 : x
  2. Step 2: Convert to fraction form
    560,468.96/840,697.89 = 256,776.97/x
  3. Step 3: Cross multiply
    560,468.96x = 840,697.89 × 256,776.97
  4. Step 4: Simplify right side
    560,468.96x = 215,871,853,923.73
  5. Step 5: Solve for x
    x = 215,871,853,923.73/560,468.96
  6. Step 6: Final answer
    x = 385,162.91

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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.