Home / 876,074.40-1,314,111.60-343,612.80

Finding the Fourth Proportional to 876,074.40, 1,314,111.60 and 343,612.80

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Solution

The fourth proportional to 876,074.40, 1,314,111.60 and 343,612.80 is: 515,419.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,074.40 : 1,314,111.60 = 343,612.80 : x
  2. Step 2: Convert to fraction form
    876,074.40/1,314,111.60 = 343,612.80/x
  3. Step 3: Cross multiply
    876,074.40x = 1,314,111.60 × 343,612.80
  4. Step 4: Simplify right side
    876,074.40x = 451,545,566,388.48
  5. Step 5: Solve for x
    x = 451,545,566,388.48/876,074.40
  6. Step 6: Final answer
    x = 515,419.20

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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.