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Finding the Fourth Proportional to 565,562.52, 780,476.28 and 310,913.73

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Solution

The fourth proportional to 565,562.52, 780,476.28 and 310,913.73 is: 429,060.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,562.52 : 780,476.28 = 310,913.73 : x
  2. Step 2: Convert to fraction form
    565,562.52/780,476.28 = 310,913.73/x
  3. Step 3: Cross multiply
    565,562.52x = 780,476.28 × 310,913.73
  4. Step 4: Simplify right side
    565,562.52x = 242,660,791,391.32
  5. Step 5: Solve for x
    x = 242,660,791,391.32/565,562.52
  6. Step 6: Final answer
    x = 429,060.95

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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.