Home / 1,145,791.96-1,581,139.26-636,525.40

Finding the Fourth Proportional to 1,145,791.96, 1,581,139.26 and 636,525.40

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Solution

The fourth proportional to 1,145,791.96, 1,581,139.26 and 636,525.40 is: 878,375.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,791.96 : 1,581,139.26 = 636,525.40 : x
  2. Step 2: Convert to fraction form
    1,145,791.96/1,581,139.26 = 636,525.40/x
  3. Step 3: Cross multiply
    1,145,791.96x = 1,581,139.26 × 636,525.40
  4. Step 4: Simplify right side
    1,145,791.96x = 1,006,435,299,927.20
  5. Step 5: Solve for x
    x = 1,006,435,299,927.20/1,145,791.96
  6. Step 6: Final answer
    x = 878,375.25

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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.