Home / 915,910.70-1,373,866.05-418,246.70

Finding the Fourth Proportional to 915,910.70, 1,373,866.05 and 418,246.70

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Solution

The fourth proportional to 915,910.70, 1,373,866.05 and 418,246.70 is: 627,370.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,910.70 : 1,373,866.05 = 418,246.70 : x
  2. Step 2: Convert to fraction form
    915,910.70/1,373,866.05 = 418,246.70/x
  3. Step 3: Cross multiply
    915,910.70x = 1,373,866.05 × 418,246.70
  4. Step 4: Simplify right side
    915,910.70x = 574,614,941,654.54
  5. Step 5: Solve for x
    x = 574,614,941,654.54/915,910.70
  6. Step 6: Final answer
    x = 627,370.05

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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.