Home / 690,708.23-1,036,202.46-217,283.48

Finding the Fourth Proportional to 690,708.23, 1,036,202.46 and 217,283.48

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Solution

The fourth proportional to 690,708.23, 1,036,202.46 and 217,283.48 is: 325,969.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,708.23 : 1,036,202.46 = 217,283.48 : x
  2. Step 2: Convert to fraction form
    690,708.23/1,036,202.46 = 217,283.48/x
  3. Step 3: Cross multiply
    690,708.23x = 1,036,202.46 × 217,283.48
  4. Step 4: Simplify right side
    690,708.23x = 225,149,671,312.35
  5. Step 5: Solve for x
    x = 225,149,671,312.35/690,708.23
  6. Step 6: Final answer
    x = 325,969.29

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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.