Home / 1,318,390.88-1,818,711.64-834,140.48

Finding the Fourth Proportional to 1,318,390.88, 1,818,711.64 and 834,140.48

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Solution

The fourth proportional to 1,318,390.88, 1,818,711.64 and 834,140.48 is: 1,150,691.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,390.88 : 1,818,711.64 = 834,140.48 : x
  2. Step 2: Convert to fraction form
    1,318,390.88/1,818,711.64 = 834,140.48/x
  3. Step 3: Cross multiply
    1,318,390.88x = 1,818,711.64 × 834,140.48
  4. Step 4: Simplify right side
    1,318,390.88x = 1,517,061,000,371.19
  5. Step 5: Solve for x
    x = 1,517,061,000,371.19/1,318,390.88
  6. Step 6: Final answer
    x = 1,150,691.36

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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.