Home / 749,851.83-1,034,791.20-405,686.88

Finding the Fourth Proportional to 749,851.83, 1,034,791.20 and 405,686.88

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Solution

The fourth proportional to 749,851.83, 1,034,791.20 and 405,686.88 is: 559,845.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,851.83 : 1,034,791.20 = 405,686.88 : x
  2. Step 2: Convert to fraction form
    749,851.83/1,034,791.20 = 405,686.88/x
  3. Step 3: Cross multiply
    749,851.83x = 1,034,791.20 × 405,686.88
  4. Step 4: Simplify right side
    749,851.83x = 419,801,213,379.46
  5. Step 5: Solve for x
    x = 419,801,213,379.46/749,851.83
  6. Step 6: Final answer
    x = 559,845.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.