Home / 725,854.34-1,001,704.66-403,655.78

Finding the Fourth Proportional to 725,854.34, 1,001,704.66 and 403,655.78

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Solution

The fourth proportional to 725,854.34, 1,001,704.66 and 403,655.78 is: 557,059.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,854.34 : 1,001,704.66 = 403,655.78 : x
  2. Step 2: Convert to fraction form
    725,854.34/1,001,704.66 = 403,655.78/x
  3. Step 3: Cross multiply
    725,854.34x = 1,001,704.66 × 403,655.78
  4. Step 4: Simplify right side
    725,854.34x = 404,343,875,861.94
  5. Step 5: Solve for x
    x = 404,343,875,861.94/725,854.34
  6. Step 6: Final answer
    x = 557,059.25

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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.