Home / 915,390.75-1,373,086.14-354,425.25

Finding the Fourth Proportional to 915,390.75, 1,373,086.14 and 354,425.25

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Solution

The fourth proportional to 915,390.75, 1,373,086.14 and 354,425.25 is: 531,637.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,390.75 : 1,373,086.14 = 354,425.25 : x
  2. Step 2: Convert to fraction form
    915,390.75/1,373,086.14 = 354,425.25/x
  3. Step 3: Cross multiply
    915,390.75x = 1,373,086.14 × 354,425.25
  4. Step 4: Simplify right side
    915,390.75x = 486,656,398,441.04
  5. Step 5: Solve for x
    x = 486,656,398,441.04/915,390.75
  6. Step 6: Final answer
    x = 531,637.88

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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.