Home / 1,129,771.60-1,694,890.64-331,079.20

Finding the Fourth Proportional to 1,129,771.60, 1,694,890.64 and 331,079.20

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Solution

The fourth proportional to 1,129,771.60, 1,694,890.64 and 331,079.20 is: 496,687.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,771.60 : 1,694,890.64 = 331,079.20 : x
  2. Step 2: Convert to fraction form
    1,129,771.60/1,694,890.64 = 331,079.20/x
  3. Step 3: Cross multiply
    1,129,771.60x = 1,694,890.64 × 331,079.20
  4. Step 4: Simplify right side
    1,129,771.60x = 561,143,037,178.69
  5. Step 5: Solve for x
    x = 561,143,037,178.69/1,129,771.60
  6. Step 6: Final answer
    x = 496,687.15

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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.