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Finding the Fourth Proportional to 723,575.88, 998,519.13 and 401,279.04

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Solution

The fourth proportional to 723,575.88, 998,519.13 and 401,279.04 is: 553,756.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,575.88 : 998,519.13 = 401,279.04 : x
  2. Step 2: Convert to fraction form
    723,575.88/998,519.13 = 401,279.04/x
  3. Step 3: Cross multiply
    723,575.88x = 998,519.13 × 401,279.04
  4. Step 4: Simplify right side
    723,575.88x = 400,684,797,908.04
  5. Step 5: Solve for x
    x = 400,684,797,908.04/723,575.88
  6. Step 6: Final answer
    x = 553,756.43

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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.