Home / 726,609.08-1,002,729.61-399,959.84

Finding the Fourth Proportional to 726,609.08, 1,002,729.61 and 399,959.84

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Solution

The fourth proportional to 726,609.08, 1,002,729.61 and 399,959.84 is: 551,949.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,609.08 : 1,002,729.61 = 399,959.84 : x
  2. Step 2: Convert to fraction form
    726,609.08/1,002,729.61 = 399,959.84/x
  3. Step 3: Cross multiply
    726,609.08x = 1,002,729.61 × 399,959.84
  4. Step 4: Simplify right side
    726,609.08x = 401,051,577,385.64
  5. Step 5: Solve for x
    x = 401,051,577,385.64/726,609.08
  6. Step 6: Final answer
    x = 551,949.58

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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.