Home / 787,672.80-1,181,624.40-255,103.20

Finding the Fourth Proportional to 787,672.80, 1,181,624.40 and 255,103.20

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Solution

The fourth proportional to 787,672.80, 1,181,624.40 and 255,103.20 is: 382,692.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,672.80 : 1,181,624.40 = 255,103.20 : x
  2. Step 2: Convert to fraction form
    787,672.80/1,181,624.40 = 255,103.20/x
  3. Step 3: Cross multiply
    787,672.80x = 1,181,624.40 × 255,103.20
  4. Step 4: Simplify right side
    787,672.80x = 301,436,165,638.08
  5. Step 5: Solve for x
    x = 301,436,165,638.08/787,672.80
  6. Step 6: Final answer
    x = 382,692.11

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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.