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Finding the Fourth Proportional to 615,034.30, 922,551.45 and 447,072.70

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Solution

The fourth proportional to 615,034.30, 922,551.45 and 447,072.70 is: 670,609.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,034.30 : 922,551.45 = 447,072.70 : x
  2. Step 2: Convert to fraction form
    615,034.30/922,551.45 = 447,072.70/x
  3. Step 3: Cross multiply
    615,034.30x = 922,551.45 × 447,072.70
  4. Step 4: Simplify right side
    615,034.30x = 412,447,567,640.42
  5. Step 5: Solve for x
    x = 412,447,567,640.42/615,034.30
  6. Step 6: Final answer
    x = 670,609.05

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Similar ratio
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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.