Home / 753,645.15-1,130,467.73-280,232.55

Finding the Fourth Proportional to 753,645.15, 1,130,467.73 and 280,232.55

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Solution

The fourth proportional to 753,645.15, 1,130,467.73 and 280,232.55 is: 420,348.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,645.15 : 1,130,467.73 = 280,232.55 : x
  2. Step 2: Convert to fraction form
    753,645.15/1,130,467.73 = 280,232.55/x
  3. Step 3: Cross multiply
    753,645.15x = 1,130,467.73 × 280,232.55
  4. Step 4: Simplify right side
    753,645.15x = 316,793,853,269.45
  5. Step 5: Solve for x
    x = 316,793,853,269.45/753,645.15
  6. Step 6: Final answer
    x = 420,348.83

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Double scale
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Similar ratio
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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.