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Finding the Fourth Proportional to 585,067.20, 877,600.80 and 385,612.80

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Solution

The fourth proportional to 585,067.20, 877,600.80 and 385,612.80 is: 578,419.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,067.20 : 877,600.80 = 385,612.80 : x
  2. Step 2: Convert to fraction form
    585,067.20/877,600.80 = 385,612.80/x
  3. Step 3: Cross multiply
    585,067.20x = 877,600.80 × 385,612.80
  4. Step 4: Simplify right side
    585,067.20x = 338,414,101,770.24
  5. Step 5: Solve for x
    x = 338,414,101,770.24/585,067.20
  6. Step 6: Final answer
    x = 578,419.20

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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.