Home / 725,986.10-1,001,819.61-403,689.27

Finding the Fourth Proportional to 725,986.10, 1,001,819.61 and 403,689.27

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Solution

The fourth proportional to 725,986.10, 1,001,819.61 and 403,689.27 is: 557,068.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,986.10 : 1,001,819.61 = 403,689.27 : x
  2. Step 2: Convert to fraction form
    725,986.10/1,001,819.61 = 403,689.27/x
  3. Step 3: Cross multiply
    725,986.10x = 1,001,819.61 × 403,689.27
  4. Step 4: Simplify right side
    725,986.10x = 404,423,827,032.59
  5. Step 5: Solve for x
    x = 404,423,827,032.59/725,986.10
  6. Step 6: Final answer
    x = 557,068.28

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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.