Home / 787,559.60-1,179,589.80-413,145.20

Finding the Fourth Proportional to 787,559.60, 1,179,589.80 and 413,145.20

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Solution

The fourth proportional to 787,559.60, 1,179,589.80 and 413,145.20 is: 618,799.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,559.60 : 1,179,589.80 = 413,145.20 : x
  2. Step 2: Convert to fraction form
    787,559.60/1,179,589.80 = 413,145.20/x
  3. Step 3: Cross multiply
    787,559.60x = 1,179,589.80 × 413,145.20
  4. Step 4: Simplify right side
    787,559.60x = 487,341,863,838.96
  5. Step 5: Solve for x
    x = 487,341,863,838.96/787,559.60
  6. Step 6: Final answer
    x = 618,799.98

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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.