Home / 676,816.60-1,015,224.90-256,106.20

Finding the Fourth Proportional to 676,816.60, 1,015,224.90 and 256,106.20

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Solution

The fourth proportional to 676,816.60, 1,015,224.90 and 256,106.20 is: 384,159.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,816.60 : 1,015,224.90 = 256,106.20 : x
  2. Step 2: Convert to fraction form
    676,816.60/1,015,224.90 = 256,106.20/x
  3. Step 3: Cross multiply
    676,816.60x = 1,015,224.90 × 256,106.20
  4. Step 4: Simplify right side
    676,816.60x = 260,005,391,284.38
  5. Step 5: Solve for x
    x = 260,005,391,284.38/676,816.60
  6. Step 6: Final answer
    x = 384,159.30

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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.