Home / 690,285.27-1,035,472.55-216,988.95

Finding the Fourth Proportional to 690,285.27, 1,035,472.55 and 216,988.95

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Solution

The fourth proportional to 690,285.27, 1,035,472.55 and 216,988.95 is: 325,497.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,285.27 : 1,035,472.55 = 216,988.95 : x
  2. Step 2: Convert to fraction form
    690,285.27/1,035,472.55 = 216,988.95/x
  3. Step 3: Cross multiply
    690,285.27x = 1,035,472.55 × 216,988.95
  4. Step 4: Simplify right side
    690,285.27x = 224,686,100,293.38
  5. Step 5: Solve for x
    x = 224,686,100,293.38/690,285.27
  6. Step 6: Final answer
    x = 325,497.46

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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.