Home / 1,223,255.20-1,834,882.80-768,577.90

Finding the Fourth Proportional to 1,223,255.20, 1,834,882.80 and 768,577.90

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Solution

The fourth proportional to 1,223,255.20, 1,834,882.80 and 768,577.90 is: 1,152,866.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,255.20 : 1,834,882.80 = 768,577.90 : x
  2. Step 2: Convert to fraction form
    1,223,255.20/1,834,882.80 = 768,577.90/x
  3. Step 3: Cross multiply
    1,223,255.20x = 1,834,882.80 × 768,577.90
  4. Step 4: Simplify right side
    1,223,255.20x = 1,410,250,369,170.12
  5. Step 5: Solve for x
    x = 1,410,250,369,170.12/1,223,255.20
  6. Step 6: Final answer
    x = 1,152,866.85

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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.