Home / 690,869.04-1,036,340.56-217,591.28

Finding the Fourth Proportional to 690,869.04, 1,036,340.56 and 217,591.28

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Solution

The fourth proportional to 690,869.04, 1,036,340.56 and 217,591.28 is: 326,398.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,869.04 : 1,036,340.56 = 217,591.28 : x
  2. Step 2: Convert to fraction form
    690,869.04/1,036,340.56 = 217,591.28/x
  3. Step 3: Cross multiply
    690,869.04x = 1,036,340.56 × 217,591.28
  4. Step 4: Simplify right side
    690,869.04x = 225,498,668,966.32
  5. Step 5: Solve for x
    x = 225,498,668,966.32/690,869.04
  6. Step 6: Final answer
    x = 326,398.57

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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.