Home / 722,351.16-996,815.34-400,042.08

Finding the Fourth Proportional to 722,351.16, 996,815.34 and 400,042.08

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Solution

The fourth proportional to 722,351.16, 996,815.34 and 400,042.08 is: 552,041.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,351.16 : 996,815.34 = 400,042.08 : x
  2. Step 2: Convert to fraction form
    722,351.16/996,815.34 = 400,042.08/x
  3. Step 3: Cross multiply
    722,351.16x = 996,815.34 × 400,042.08
  4. Step 4: Simplify right side
    722,351.16x = 398,768,081,989.51
  5. Step 5: Solve for x
    x = 398,768,081,989.51/722,351.16
  6. Step 6: Final answer
    x = 552,041.87

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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.