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Finding the Fourth Proportional to 565,718.20, 780,496.86 and 350,780.92

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Solution

The fourth proportional to 565,718.20, 780,496.86 and 350,780.92 is: 483,957.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,718.20 : 780,496.86 = 350,780.92 : x
  2. Step 2: Convert to fraction form
    565,718.20/780,496.86 = 350,780.92/x
  3. Step 3: Cross multiply
    565,718.20x = 780,496.86 × 350,780.92
  4. Step 4: Simplify right side
    565,718.20x = 273,783,406,607.91
  5. Step 5: Solve for x
    x = 273,783,406,607.91/565,718.20
  6. Step 6: Final answer
    x = 483,957.22

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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.