Home / 791,920.80-1,186,268.40-491,479.20

Finding the Fourth Proportional to 791,920.80, 1,186,268.40 and 491,479.20

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Solution

The fourth proportional to 791,920.80, 1,186,268.40 and 491,479.20 is: 736,217.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,920.80 : 1,186,268.40 = 491,479.20 : x
  2. Step 2: Convert to fraction form
    791,920.80/1,186,268.40 = 491,479.20/x
  3. Step 3: Cross multiply
    791,920.80x = 1,186,268.40 × 491,479.20
  4. Step 4: Simplify right side
    791,920.80x = 583,026,244,217.28
  5. Step 5: Solve for x
    x = 583,026,244,217.28/791,920.80
  6. Step 6: Final answer
    x = 736,217.87

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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.