Home / 676,809.60-1,015,214.40-256,099.20

Finding the Fourth Proportional to 676,809.60, 1,015,214.40 and 256,099.20

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Solution

The fourth proportional to 676,809.60, 1,015,214.40 and 256,099.20 is: 384,148.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,809.60 : 1,015,214.40 = 256,099.20 : x
  2. Step 2: Convert to fraction form
    676,809.60/1,015,214.40 = 256,099.20/x
  3. Step 3: Cross multiply
    676,809.60x = 1,015,214.40 × 256,099.20
  4. Step 4: Simplify right side
    676,809.60x = 259,995,595,668.48
  5. Step 5: Solve for x
    x = 259,995,595,668.48/676,809.60
  6. Step 6: Final answer
    x = 384,148.80

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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.