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Finding the Fourth Proportional to 527,348.75, 727,697.41 and 309,533.87

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Solution

The fourth proportional to 527,348.75, 727,697.41 and 309,533.87 is: 427,131.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,348.75 : 727,697.41 = 309,533.87 : x
  2. Step 2: Convert to fraction form
    527,348.75/727,697.41 = 309,533.87/x
  3. Step 3: Cross multiply
    527,348.75x = 727,697.41 × 309,533.87
  4. Step 4: Simplify right side
    527,348.75x = 225,246,996,551.69
  5. Step 5: Solve for x
    x = 225,246,996,551.69/527,348.75
  6. Step 6: Final answer
    x = 427,131.00

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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.