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Finding the Fourth Proportional to 567,591.06, 783,280.95 and 312,951.30

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Solution

The fourth proportional to 567,591.06, 783,280.95 and 312,951.30 is: 431,875.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,591.06 : 783,280.95 = 312,951.30 : x
  2. Step 2: Convert to fraction form
    567,591.06/783,280.95 = 312,951.30/x
  3. Step 3: Cross multiply
    567,591.06x = 783,280.95 × 312,951.30
  4. Step 4: Simplify right side
    567,591.06x = 245,128,791,567.74
  5. Step 5: Solve for x
    x = 245,128,791,567.74/567,591.06
  6. Step 6: Final answer
    x = 431,875.71

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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.