Home / 725,962.72-1,001,845.92-403,686.40

Finding the Fourth Proportional to 725,962.72, 1,001,845.92 and 403,686.40

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Solution

The fourth proportional to 725,962.72, 1,001,845.92 and 403,686.40 is: 557,096.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,962.72 : 1,001,845.92 = 403,686.40 : x
  2. Step 2: Convert to fraction form
    725,962.72/1,001,845.92 = 403,686.40/x
  3. Step 3: Cross multiply
    725,962.72x = 1,001,845.92 × 403,686.40
  4. Step 4: Simplify right side
    725,962.72x = 404,431,572,799.49
  5. Step 5: Solve for x
    x = 404,431,572,799.49/725,962.72
  6. Step 6: Final answer
    x = 557,096.89

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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.