Home / 763,327.20-1,144,990.80-202,418.40

Finding the Fourth Proportional to 763,327.20, 1,144,990.80 and 202,418.40

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Solution

The fourth proportional to 763,327.20, 1,144,990.80 and 202,418.40 is: 303,627.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,327.20 : 1,144,990.80 = 202,418.40 : x
  2. Step 2: Convert to fraction form
    763,327.20/1,144,990.80 = 202,418.40/x
  3. Step 3: Cross multiply
    763,327.20x = 1,144,990.80 × 202,418.40
  4. Step 4: Simplify right side
    763,327.20x = 231,767,205,750.72
  5. Step 5: Solve for x
    x = 231,767,205,750.72/763,327.20
  6. Step 6: Final answer
    x = 303,627.60

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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.