Home / 725,978.24-1,001,808.82-403,681.42

Finding the Fourth Proportional to 725,978.24, 1,001,808.82 and 403,681.42

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Solution

The fourth proportional to 725,978.24, 1,001,808.82 and 403,681.42 is: 557,057.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,978.24 : 1,001,808.82 = 403,681.42 : x
  2. Step 2: Convert to fraction form
    725,978.24/1,001,808.82 = 403,681.42/x
  3. Step 3: Cross multiply
    725,978.24x = 1,001,808.82 × 403,681.42
  4. Step 4: Simplify right side
    725,978.24x = 404,411,602,017.08
  5. Step 5: Solve for x
    x = 404,411,602,017.08/725,978.24
  6. Step 6: Final answer
    x = 557,057.47

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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.