Home / 725,868.72-1,001,642.40-403,559.28

Finding the Fourth Proportional to 725,868.72, 1,001,642.40 and 403,559.28

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Solution

The fourth proportional to 725,868.72, 1,001,642.40 and 403,559.28 is: 556,880.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,868.72 : 1,001,642.40 = 403,559.28 : x
  2. Step 2: Convert to fraction form
    725,868.72/1,001,642.40 = 403,559.28/x
  3. Step 3: Cross multiply
    725,868.72x = 1,001,642.40 × 403,559.28
  4. Step 4: Simplify right side
    725,868.72x = 404,222,085,761.47
  5. Step 5: Solve for x
    x = 404,222,085,761.47/725,868.72
  6. Step 6: Final answer
    x = 556,880.43

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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.