Home / 723,587.49-998,610.57-401,401.65

Finding the Fourth Proportional to 723,587.49, 998,610.57 and 401,401.65

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Solution

The fourth proportional to 723,587.49, 998,610.57 and 401,401.65 is: 553,967.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,587.49 : 998,610.57 = 401,401.65 : x
  2. Step 2: Convert to fraction form
    723,587.49/998,610.57 = 401,401.65/x
  3. Step 3: Cross multiply
    723,587.49x = 998,610.57 × 401,401.65
  4. Step 4: Simplify right side
    723,587.49x = 400,843,930,505.44
  5. Step 5: Solve for x
    x = 400,843,930,505.44/723,587.49
  6. Step 6: Final answer
    x = 553,967.47

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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.