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Finding the Fourth Proportional to 615,125.10, 922,687.65 and 362,145.90

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Solution

The fourth proportional to 615,125.10, 922,687.65 and 362,145.90 is: 543,218.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,125.10 : 922,687.65 = 362,145.90 : x
  2. Step 2: Convert to fraction form
    615,125.10/922,687.65 = 362,145.90/x
  3. Step 3: Cross multiply
    615,125.10x = 922,687.65 × 362,145.90
  4. Step 4: Simplify right side
    615,125.10x = 334,147,549,428.14
  5. Step 5: Solve for x
    x = 334,147,549,428.14/615,125.10
  6. Step 6: Final answer
    x = 543,218.85

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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.