Home / 929,145.30-1,392,776.55-629,655.90

Finding the Fourth Proportional to 929,145.30, 1,392,776.55 and 629,655.90

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Solution

The fourth proportional to 929,145.30, 1,392,776.55 and 629,655.90 is: 943,845.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,145.30 : 1,392,776.55 = 629,655.90 : x
  2. Step 2: Convert to fraction form
    929,145.30/1,392,776.55 = 629,655.90/x
  3. Step 3: Cross multiply
    929,145.30x = 1,392,776.55 × 629,655.90
  4. Step 4: Simplify right side
    929,145.30x = 876,969,972,089.15
  5. Step 5: Solve for x
    x = 876,969,972,089.15/929,145.30
  6. Step 6: Final answer
    x = 943,845.89

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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.