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Finding the Fourth Proportional to 468,660.60, 702,990.90 and 309,228.30

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Solution

The fourth proportional to 468,660.60, 702,990.90 and 309,228.30 is: 463,842.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,660.60 : 702,990.90 = 309,228.30 : x
  2. Step 2: Convert to fraction form
    468,660.60/702,990.90 = 309,228.30/x
  3. Step 3: Cross multiply
    468,660.60x = 702,990.90 × 309,228.30
  4. Step 4: Simplify right side
    468,660.60x = 217,384,680,922.47
  5. Step 5: Solve for x
    x = 217,384,680,922.47/468,660.60
  6. Step 6: Final answer
    x = 463,842.45

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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.