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Finding the Fourth Proportional to 834,419.10, 1,254,253.05 and 818,672.70

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Solution

The fourth proportional to 834,419.10, 1,254,253.05 and 818,672.70 is: 1,230,583.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,419.10 : 1,254,253.05 = 818,672.70 : x
  2. Step 2: Convert to fraction form
    834,419.10/1,254,253.05 = 818,672.70/x
  3. Step 3: Cross multiply
    834,419.10x = 1,254,253.05 × 818,672.70
  4. Step 4: Simplify right side
    834,419.10x = 1,026,822,730,926.74
  5. Step 5: Solve for x
    x = 1,026,822,730,926.74/834,419.10
  6. Step 6: Final answer
    x = 1,230,583.92

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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.