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Finding the Fourth Proportional to 659,081.40, 988,622.10 and 304,787.40

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Solution

The fourth proportional to 659,081.40, 988,622.10 and 304,787.40 is: 457,181.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,081.40 : 988,622.10 = 304,787.40 : x
  2. Step 2: Convert to fraction form
    659,081.40/988,622.10 = 304,787.40/x
  3. Step 3: Cross multiply
    659,081.40x = 988,622.10 × 304,787.40
  4. Step 4: Simplify right side
    659,081.40x = 301,319,559,441.54
  5. Step 5: Solve for x
    x = 301,319,559,441.54/659,081.40
  6. Step 6: Final answer
    x = 457,181.10

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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.