Home / 723,617.27-998,653.11-401,431.13

Finding the Fourth Proportional to 723,617.27, 998,653.11 and 401,431.13

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Solution

The fourth proportional to 723,617.27, 998,653.11 and 401,431.13 is: 554,008.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,617.27 : 998,653.11 = 401,431.13 : x
  2. Step 2: Convert to fraction form
    723,617.27/998,653.11 = 401,431.13/x
  3. Step 3: Cross multiply
    723,617.27x = 998,653.11 × 401,431.13
  4. Step 4: Simplify right side
    723,617.27x = 400,890,441,432.05
  5. Step 5: Solve for x
    x = 400,890,441,432.05/723,617.27
  6. Step 6: Final answer
    x = 554,008.95

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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.