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Finding the Fourth Proportional to 662,660.10, 994,508.55 and 307,718.10

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Solution

The fourth proportional to 662,660.10, 994,508.55 and 307,718.10 is: 461,817.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,660.10 : 994,508.55 = 307,718.10 : x
  2. Step 2: Convert to fraction form
    662,660.10/994,508.55 = 307,718.10/x
  3. Step 3: Cross multiply
    662,660.10x = 994,508.55 × 307,718.10
  4. Step 4: Simplify right side
    662,660.10x = 306,028,281,439.76
  5. Step 5: Solve for x
    x = 306,028,281,439.76/662,660.10
  6. Step 6: Final answer
    x = 461,817.88

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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.