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Finding the Fourth Proportional to 723,751.58, 998,793.19 and 401,451.18

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Solution

The fourth proportional to 723,751.58, 998,793.19 and 401,451.18 is: 554,011.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,751.58 : 998,793.19 = 401,451.18 : x
  2. Step 2: Convert to fraction form
    723,751.58/998,793.19 = 401,451.18/x
  3. Step 3: Cross multiply
    723,751.58x = 998,793.19 × 401,451.18
  4. Step 4: Simplify right side
    723,751.58x = 400,966,704,701.46
  5. Step 5: Solve for x
    x = 400,966,704,701.46/723,751.58
  6. Step 6: Final answer
    x = 554,011.51

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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.