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Finding the Fourth Proportional to 615,618.30, 923,427.45 and 552,632.70

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Solution

The fourth proportional to 615,618.30, 923,427.45 and 552,632.70 is: 828,949.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,618.30 : 923,427.45 = 552,632.70 : x
  2. Step 2: Convert to fraction form
    615,618.30/923,427.45 = 552,632.70/x
  3. Step 3: Cross multiply
    615,618.30x = 923,427.45 × 552,632.70
  4. Step 4: Simplify right side
    615,618.30x = 510,316,204,947.62
  5. Step 5: Solve for x
    x = 510,316,204,947.62/615,618.30
  6. Step 6: Final answer
    x = 828,949.05

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Double scale
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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.