Home / 1,305,970.91-1,802,354.07-725,307.57

Finding the Fourth Proportional to 1,305,970.91, 1,802,354.07 and 725,307.57

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Solution

The fourth proportional to 1,305,970.91, 1,802,354.07 and 725,307.57 is: 1,000,987.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,305,970.91 : 1,802,354.07 = 725,307.57 : x
  2. Step 2: Convert to fraction form
    1,305,970.91/1,802,354.07 = 725,307.57/x
  3. Step 3: Cross multiply
    1,305,970.91x = 1,802,354.07 × 725,307.57
  4. Step 4: Simplify right side
    1,305,970.91x = 1,307,261,050,791.31
  5. Step 5: Solve for x
    x = 1,307,261,050,791.31/1,305,970.91
  6. Step 6: Final answer
    x = 1,000,987.88

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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.