Home / 690,198.60-1,035,411.30-216,769.80

Finding the Fourth Proportional to 690,198.60, 1,035,411.30 and 216,769.80

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Solution

The fourth proportional to 690,198.60, 1,035,411.30 and 216,769.80 is: 325,190.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,198.60 : 1,035,411.30 = 216,769.80 : x
  2. Step 2: Convert to fraction form
    690,198.60/1,035,411.30 = 216,769.80/x
  3. Step 3: Cross multiply
    690,198.60x = 1,035,411.30 × 216,769.80
  4. Step 4: Simplify right side
    690,198.60x = 224,445,900,418.74
  5. Step 5: Solve for x
    x = 224,445,900,418.74/690,198.60
  6. Step 6: Final answer
    x = 325,190.32

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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.