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Finding the Fourth Proportional to 615,956.47, 923,774.32 and 260,787.67

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Solution

The fourth proportional to 615,956.47, 923,774.32 and 260,787.67 is: 391,113.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,956.47 : 923,774.32 = 260,787.67 : x
  2. Step 2: Convert to fraction form
    615,956.47/923,774.32 = 260,787.67/x
  3. Step 3: Cross multiply
    615,956.47x = 923,774.32 × 260,787.67
  4. Step 4: Simplify right side
    615,956.47x = 240,908,952,518.63
  5. Step 5: Solve for x
    x = 240,908,952,518.63/615,956.47
  6. Step 6: Final answer
    x = 391,113.60

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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.