Home / 725,989.30-1,001,888.13-403,712.98

Finding the Fourth Proportional to 725,989.30, 1,001,888.13 and 403,712.98

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Solution

The fourth proportional to 725,989.30, 1,001,888.13 and 403,712.98 is: 557,136.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,989.30 : 1,001,888.13 = 403,712.98 : x
  2. Step 2: Convert to fraction form
    725,989.30/1,001,888.13 = 403,712.98/x
  3. Step 3: Cross multiply
    725,989.30x = 1,001,888.13 × 403,712.98
  4. Step 4: Simplify right side
    725,989.30x = 404,475,242,588.93
  5. Step 5: Solve for x
    x = 404,475,242,588.93/725,989.30
  6. Step 6: Final answer
    x = 557,136.64

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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.