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Finding the Fourth Proportional to 565,711.20, 780,487.20 and 350,773.92

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Solution

The fourth proportional to 565,711.20, 780,487.20 and 350,773.92 is: 483,947.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,711.20 : 780,487.20 = 350,773.92 : x
  2. Step 2: Convert to fraction form
    565,711.20/780,487.20 = 350,773.92/x
  3. Step 3: Cross multiply
    565,711.20x = 780,487.20 × 350,773.92
  4. Step 4: Simplify right side
    565,711.20x = 273,774,554,653.82
  5. Step 5: Solve for x
    x = 273,774,554,653.82/565,711.20
  6. Step 6: Final answer
    x = 483,947.56

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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.