Home / 381,812.40-571,552.20-297,831.60

Finding the Fourth Proportional to 381,812.40, 571,552.20 and 297,831.60

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Solution

The fourth proportional to 381,812.40, 571,552.20 and 297,831.60 is: 445,837.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,812.40 : 571,552.20 = 297,831.60 : x
  2. Step 2: Convert to fraction form
    381,812.40/571,552.20 = 297,831.60/x
  3. Step 3: Cross multiply
    381,812.40x = 571,552.20 × 297,831.60
  4. Step 4: Simplify right side
    381,812.40x = 170,226,306,209.52
  5. Step 5: Solve for x
    x = 170,226,306,209.52/381,812.40
  6. Step 6: Final answer
    x = 445,837.55

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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.