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Finding the Fourth Proportional to 585,340.40, 878,010.60 and 304,821.20

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Solution

The fourth proportional to 585,340.40, 878,010.60 and 304,821.20 is: 457,231.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,340.40 : 878,010.60 = 304,821.20 : x
  2. Step 2: Convert to fraction form
    585,340.40/878,010.60 = 304,821.20/x
  3. Step 3: Cross multiply
    585,340.40x = 878,010.60 × 304,821.20
  4. Step 4: Simplify right side
    585,340.40x = 267,636,244,704.72
  5. Step 5: Solve for x
    x = 267,636,244,704.72/585,340.40
  6. Step 6: Final answer
    x = 457,231.80

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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.