Home / 765,648.05-1,056,655.26-443,363.76

Finding the Fourth Proportional to 765,648.05, 1,056,655.26 and 443,363.76

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Solution

The fourth proportional to 765,648.05, 1,056,655.26 and 443,363.76 is: 611,877.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,648.05 : 1,056,655.26 = 443,363.76 : x
  2. Step 2: Convert to fraction form
    765,648.05/1,056,655.26 = 443,363.76/x
  3. Step 3: Cross multiply
    765,648.05x = 1,056,655.26 × 443,363.76
  4. Step 4: Simplify right side
    765,648.05x = 468,482,649,097.38
  5. Step 5: Solve for x
    x = 468,482,649,097.38/765,648.05
  6. Step 6: Final answer
    x = 611,877.29

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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.