Home / 753,115.28-1,129,433.64-247,559.60

Finding the Fourth Proportional to 753,115.28, 1,129,433.64 and 247,559.60

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Solution

The fourth proportional to 753,115.28, 1,129,433.64 and 247,559.60 is: 371,260.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,115.28 : 1,129,433.64 = 247,559.60 : x
  2. Step 2: Convert to fraction form
    753,115.28/1,129,433.64 = 247,559.60/x
  3. Step 3: Cross multiply
    753,115.28x = 1,129,433.64 × 247,559.60
  4. Step 4: Simplify right side
    753,115.28x = 279,602,140,144.94
  5. Step 5: Solve for x
    x = 279,602,140,144.94/753,115.28
  6. Step 6: Final answer
    x = 371,260.75

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Double scale
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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.