Home / 690,713.70-1,036,020-217,534.38

Finding the Fourth Proportional to 690,713.70, 1,036,020 and 217,534.38

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Solution

The fourth proportional to 690,713.70, 1,036,020 and 217,534.38 is: 326,285.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,713.70 : 1,036,020 = 217,534.38 : x
  2. Step 2: Convert to fraction form
    690,713.70/1,036,020 = 217,534.38/x
  3. Step 3: Cross multiply
    690,713.70x = 1,036,020 × 217,534.38
  4. Step 4: Simplify right side
    690,713.70x = 225,369,968,367.60
  5. Step 5: Solve for x
    x = 225,369,968,367.60/690,713.70
  6. Step 6: Final answer
    x = 326,285.65

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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.