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Finding the Fourth Proportional to 534,417.76, 737,489.08 and 305,047.78

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Solution

The fourth proportional to 534,417.76, 737,489.08 and 305,047.78 is: 420,961.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,417.76 : 737,489.08 = 305,047.78 : x
  2. Step 2: Convert to fraction form
    534,417.76/737,489.08 = 305,047.78/x
  3. Step 3: Cross multiply
    534,417.76x = 737,489.08 × 305,047.78
  4. Step 4: Simplify right side
    534,417.76x = 224,969,406,382.07
  5. Step 5: Solve for x
    x = 224,969,406,382.07/534,417.76
  6. Step 6: Final answer
    x = 420,961.70

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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.