Home / 725,925.78-1,001,800.71-403,649.46

Finding the Fourth Proportional to 725,925.78, 1,001,800.71 and 403,649.46

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Solution

The fourth proportional to 725,925.78, 1,001,800.71 and 403,649.46 is: 557,049.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,925.78 : 1,001,800.71 = 403,649.46 : x
  2. Step 2: Convert to fraction form
    725,925.78/1,001,800.71 = 403,649.46/x
  3. Step 3: Cross multiply
    725,925.78x = 1,001,800.71 × 403,649.46
  4. Step 4: Simplify right side
    725,925.78x = 404,376,315,619.12
  5. Step 5: Solve for x
    x = 404,376,315,619.12/725,925.78
  6. Step 6: Final answer
    x = 557,049.12

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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.