Home / 727,610.40-1,004,132.62-405,320.42

Finding the Fourth Proportional to 727,610.40, 1,004,132.62 and 405,320.42

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Solution

The fourth proportional to 727,610.40, 1,004,132.62 and 405,320.42 is: 559,359.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,610.40 : 1,004,132.62 = 405,320.42 : x
  2. Step 2: Convert to fraction form
    727,610.40/1,004,132.62 = 405,320.42/x
  3. Step 3: Cross multiply
    727,610.40x = 1,004,132.62 × 405,320.42
  4. Step 4: Simplify right side
    727,610.40x = 406,995,455,274.10
  5. Step 5: Solve for x
    x = 406,995,455,274.10/727,610.40
  6. Step 6: Final answer
    x = 559,359.04

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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.