Home / 749,266.80-1,123,511.40-275,708.40

Finding the Fourth Proportional to 749,266.80, 1,123,511.40 and 275,708.40

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Solution

The fourth proportional to 749,266.80, 1,123,511.40 and 275,708.40 is: 413,419.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,266.80 : 1,123,511.40 = 275,708.40 : x
  2. Step 2: Convert to fraction form
    749,266.80/1,123,511.40 = 275,708.40/x
  3. Step 3: Cross multiply
    749,266.80x = 1,123,511.40 × 275,708.40
  4. Step 4: Simplify right side
    749,266.80x = 309,761,530,475.76
  5. Step 5: Solve for x
    x = 309,761,530,475.76/749,266.80
  6. Step 6: Final answer
    x = 413,419.53

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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.