Home / 690,915.75-1,036,230.66-185,356.88

Finding the Fourth Proportional to 690,915.75, 1,036,230.66 and 185,356.88

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Solution

The fourth proportional to 690,915.75, 1,036,230.66 and 185,356.88 is: 277,996.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,915.75 : 1,036,230.66 = 185,356.88 : x
  2. Step 2: Convert to fraction form
    690,915.75/1,036,230.66 = 185,356.88/x
  3. Step 3: Cross multiply
    690,915.75x = 1,036,230.66 × 185,356.88
  4. Step 4: Simplify right side
    690,915.75x = 192,072,482,097.94
  5. Step 5: Solve for x
    x = 192,072,482,097.94/690,915.75
  6. Step 6: Final answer
    x = 277,996.97

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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.