Home / 690,712.24-1,036,208.46-217,287.49

Finding the Fourth Proportional to 690,712.24, 1,036,208.46 and 217,287.49

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Solution

The fourth proportional to 690,712.24, 1,036,208.46 and 217,287.49 is: 325,975.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,712.24 : 1,036,208.46 = 217,287.49 : x
  2. Step 2: Convert to fraction form
    690,712.24/1,036,208.46 = 217,287.49/x
  3. Step 3: Cross multiply
    690,712.24x = 1,036,208.46 × 217,287.49
  4. Step 4: Simplify right side
    690,712.24x = 225,155,135,390.17
  5. Step 5: Solve for x
    x = 225,155,135,390.17/690,712.24
  6. Step 6: Final answer
    x = 325,975.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.