Home / 723,853.12-998,919.84-401,569.60

Finding the Fourth Proportional to 723,853.12, 998,919.84 and 401,569.60

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Solution

The fourth proportional to 723,853.12, 998,919.84 and 401,569.60 is: 554,167.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,853.12 : 998,919.84 = 401,569.60 : x
  2. Step 2: Convert to fraction form
    723,853.12/998,919.84 = 401,569.60/x
  3. Step 3: Cross multiply
    723,853.12x = 998,919.84 × 401,569.60
  4. Step 4: Simplify right side
    723,853.12x = 401,135,840,580.86
  5. Step 5: Solve for x
    x = 401,135,840,580.86/723,853.12
  6. Step 6: Final answer
    x = 554,167.45

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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.