Home / 765,633.92-1,056,635.82-443,349.70

Finding the Fourth Proportional to 765,633.92, 1,056,635.82 and 443,349.70

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Solution

The fourth proportional to 765,633.92, 1,056,635.82 and 443,349.70 is: 611,857.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,633.92 : 1,056,635.82 = 443,349.70 : x
  2. Step 2: Convert to fraction form
    765,633.92/1,056,635.82 = 443,349.70/x
  3. Step 3: Cross multiply
    765,633.92x = 1,056,635.82 × 443,349.70
  4. Step 4: Simplify right side
    765,633.92x = 468,459,171,164.67
  5. Step 5: Solve for x
    x = 468,459,171,164.67/765,633.92
  6. Step 6: Final answer
    x = 611,857.92

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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.