Home / 781,024.04-1,170,198.60-426,287

Finding the Fourth Proportional to 781,024.04, 1,170,198.60 and 426,287

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Solution

The fourth proportional to 781,024.04, 1,170,198.60 and 426,287 is: 638,700.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,024.04 : 1,170,198.60 = 426,287 : x
  2. Step 2: Convert to fraction form
    781,024.04/1,170,198.60 = 426,287/x
  3. Step 3: Cross multiply
    781,024.04x = 1,170,198.60 × 426,287
  4. Step 4: Simplify right side
    781,024.04x = 498,840,450,598.20
  5. Step 5: Solve for x
    x = 498,840,450,598.20/781,024.04
  6. Step 6: Final answer
    x = 638,700.51

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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.