Home / 747,259.20-1,120,888.80-298,049.40

Finding the Fourth Proportional to 747,259.20, 1,120,888.80 and 298,049.40

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Solution

The fourth proportional to 747,259.20, 1,120,888.80 and 298,049.40 is: 447,074.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,259.20 : 1,120,888.80 = 298,049.40 : x
  2. Step 2: Convert to fraction form
    747,259.20/1,120,888.80 = 298,049.40/x
  3. Step 3: Cross multiply
    747,259.20x = 1,120,888.80 × 298,049.40
  4. Step 4: Simplify right side
    747,259.20x = 334,080,234,306.72
  5. Step 5: Solve for x
    x = 334,080,234,306.72/747,259.20
  6. Step 6: Final answer
    x = 447,074.10

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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.