Home / 723,689.24-998,605.46-401,320.58

Finding the Fourth Proportional to 723,689.24, 998,605.46 and 401,320.58

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Solution

The fourth proportional to 723,689.24, 998,605.46 and 401,320.58 is: 553,774.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,689.24 : 998,605.46 = 401,320.58 : x
  2. Step 2: Convert to fraction form
    723,689.24/998,605.46 = 401,320.58/x
  3. Step 3: Cross multiply
    723,689.24x = 998,605.46 × 401,320.58
  4. Step 4: Simplify right side
    723,689.24x = 400,760,918,408.64
  5. Step 5: Solve for x
    x = 400,760,918,408.64/723,689.24
  6. Step 6: Final answer
    x = 553,774.88

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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.