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Finding the Fourth Proportional to 615,787.20, 923,741.28 and 255,883.68

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Solution

The fourth proportional to 615,787.20, 923,741.28 and 255,883.68 is: 383,850.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,787.20 : 923,741.28 = 255,883.68 : x
  2. Step 2: Convert to fraction form
    615,787.20/923,741.28 = 255,883.68/x
  3. Step 3: Cross multiply
    615,787.20x = 923,741.28 × 255,883.68
  4. Step 4: Simplify right side
    615,787.20x = 236,370,318,094.31
  5. Step 5: Solve for x
    x = 236,370,318,094.31/615,787.20
  6. Step 6: Final answer
    x = 383,850.65

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1.5x scale

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.