Home / 725,986.60-1,001,820.30-403,689.77

Finding the Fourth Proportional to 725,986.60, 1,001,820.30 and 403,689.77

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Solution

The fourth proportional to 725,986.60, 1,001,820.30 and 403,689.77 is: 557,068.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,986.60 : 1,001,820.30 = 403,689.77 : x
  2. Step 2: Convert to fraction form
    725,986.60/1,001,820.30 = 403,689.77/x
  3. Step 3: Cross multiply
    725,986.60x = 1,001,820.30 × 403,689.77
  4. Step 4: Simplify right side
    725,986.60x = 404,424,606,488.33
  5. Step 5: Solve for x
    x = 404,424,606,488.33/725,986.60
  6. Step 6: Final answer
    x = 557,068.97

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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.