Home / 725,756.90-1,001,578.68-403,472.36

Finding the Fourth Proportional to 725,756.90, 1,001,578.68 and 403,472.36

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Solution

The fourth proportional to 725,756.90, 1,001,578.68 and 403,472.36 is: 556,810.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,756.90 : 1,001,578.68 = 403,472.36 : x
  2. Step 2: Convert to fraction form
    725,756.90/1,001,578.68 = 403,472.36/x
  3. Step 3: Cross multiply
    725,756.90x = 1,001,578.68 × 403,472.36
  4. Step 4: Simplify right side
    725,756.90x = 404,109,313,745.29
  5. Step 5: Solve for x
    x = 404,109,313,745.29/725,756.90
  6. Step 6: Final answer
    x = 556,810.85

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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.