Home / 725,927.58-1,001,791.51-399,254.78

Finding the Fourth Proportional to 725,927.58, 1,001,791.51 and 399,254.78

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Solution

The fourth proportional to 725,927.58, 1,001,791.51 and 399,254.78 is: 550,977.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,927.58 : 1,001,791.51 = 399,254.78 : x
  2. Step 2: Convert to fraction form
    725,927.58/1,001,791.51 = 399,254.78/x
  3. Step 3: Cross multiply
    725,927.58x = 1,001,791.51 × 399,254.78
  4. Step 4: Simplify right side
    725,927.58x = 399,970,050,437.26
  5. Step 5: Solve for x
    x = 399,970,050,437.26/725,927.58
  6. Step 6: Final answer
    x = 550,977.90

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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.