Home / 723,622.40-998,660.20-401,436.26

Finding the Fourth Proportional to 723,622.40, 998,660.20 and 401,436.26

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Solution

The fourth proportional to 723,622.40, 998,660.20 and 401,436.26 is: 554,016.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,622.40 : 998,660.20 = 401,436.26 : x
  2. Step 2: Convert to fraction form
    723,622.40/998,660.20 = 401,436.26/x
  3. Step 3: Cross multiply
    723,622.40x = 998,660.20 × 401,436.26
  4. Step 4: Simplify right side
    723,622.40x = 400,898,415,698.85
  5. Step 5: Solve for x
    x = 400,898,415,698.85/723,622.40
  6. Step 6: Final answer
    x = 554,016.04

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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.