Home / 764,988.54-1,055,721.60-425,449.50

Finding the Fourth Proportional to 764,988.54, 1,055,721.60 and 425,449.50

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Solution

The fourth proportional to 764,988.54, 1,055,721.60 and 425,449.50 is: 587,141.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,988.54 : 1,055,721.60 = 425,449.50 : x
  2. Step 2: Convert to fraction form
    764,988.54/1,055,721.60 = 425,449.50/x
  3. Step 3: Cross multiply
    764,988.54x = 1,055,721.60 × 425,449.50
  4. Step 4: Simplify right side
    764,988.54x = 449,156,226,859.20
  5. Step 5: Solve for x
    x = 449,156,226,859.20/764,988.54
  6. Step 6: Final answer
    x = 587,141.12

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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.