Home / 347,422.29-478,787.52-278,433.39

Finding the Fourth Proportional to 347,422.29, 478,787.52 and 278,433.39

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Solution

The fourth proportional to 347,422.29, 478,787.52 and 278,433.39 is: 383,712.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,422.29 : 478,787.52 = 278,433.39 : x
  2. Step 2: Convert to fraction form
    347,422.29/478,787.52 = 278,433.39/x
  3. Step 3: Cross multiply
    347,422.29x = 478,787.52 × 278,433.39
  4. Step 4: Simplify right side
    347,422.29x = 133,310,432,283.29
  5. Step 5: Solve for x
    x = 133,310,432,283.29/347,422.29
  6. Step 6: Final answer
    x = 383,712.95

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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.