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Finding the Fourth Proportional to 783,309.76, 1,174,773.88 and 327,654.69

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Solution

The fourth proportional to 783,309.76, 1,174,773.88 and 327,654.69 is: 491,402.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,309.76 : 1,174,773.88 = 327,654.69 : x
  2. Step 2: Convert to fraction form
    783,309.76/1,174,773.88 = 327,654.69/x
  3. Step 3: Cross multiply
    783,309.76x = 1,174,773.88 × 327,654.69
  4. Step 4: Simplify right side
    783,309.76x = 384,920,171,471.50
  5. Step 5: Solve for x
    x = 384,920,171,471.50/783,309.76
  6. Step 6: Final answer
    x = 491,402.24

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.