Home / 756,010.60-1,134,015.90-257,374.60

Finding the Fourth Proportional to 756,010.60, 1,134,015.90 and 257,374.60

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Solution

The fourth proportional to 756,010.60, 1,134,015.90 and 257,374.60 is: 386,061.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,010.60 : 1,134,015.90 = 257,374.60 : x
  2. Step 2: Convert to fraction form
    756,010.60/1,134,015.90 = 257,374.60/x
  3. Step 3: Cross multiply
    756,010.60x = 1,134,015.90 × 257,374.60
  4. Step 4: Simplify right side
    756,010.60x = 291,866,888,656.14
  5. Step 5: Solve for x
    x = 291,866,888,656.14/756,010.60
  6. Step 6: Final answer
    x = 386,061.90

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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.