Home / 445,821.40-615,233.42-254,838.90

Finding the Fourth Proportional to 445,821.40, 615,233.42 and 254,838.90

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Solution

The fourth proportional to 445,821.40, 615,233.42 and 254,838.90 is: 351,677.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,821.40 : 615,233.42 = 254,838.90 : x
  2. Step 2: Convert to fraction form
    445,821.40/615,233.42 = 254,838.90/x
  3. Step 3: Cross multiply
    445,821.40x = 615,233.42 × 254,838.90
  4. Step 4: Simplify right side
    445,821.40x = 156,785,407,996.04
  5. Step 5: Solve for x
    x = 156,785,407,996.04/445,821.40
  6. Step 6: Final answer
    x = 351,677.62

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1.5x scale

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.