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Finding the Fourth Proportional to 615,105.10, 922,657.65 and 362,125.90

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Solution

The fourth proportional to 615,105.10, 922,657.65 and 362,125.90 is: 543,188.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,105.10 : 922,657.65 = 362,125.90 : x
  2. Step 2: Convert to fraction form
    615,105.10/922,657.65 = 362,125.90/x
  3. Step 3: Cross multiply
    615,105.10x = 922,657.65 × 362,125.90
  4. Step 4: Simplify right side
    615,105.10x = 334,118,231,898.14
  5. Step 5: Solve for x
    x = 334,118,231,898.14/615,105.10
  6. Step 6: Final answer
    x = 543,188.85

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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.