Home / 1,223,098.35-1,687,931.78-679,236.57

Finding the Fourth Proportional to 1,223,098.35, 1,687,931.78 and 679,236.57

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Solution

The fourth proportional to 1,223,098.35, 1,687,931.78 and 679,236.57 is: 937,377.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,098.35 : 1,687,931.78 = 679,236.57 : x
  2. Step 2: Convert to fraction form
    1,223,098.35/1,687,931.78 = 679,236.57/x
  3. Step 3: Cross multiply
    1,223,098.35x = 1,687,931.78 × 679,236.57
  4. Step 4: Simplify right side
    1,223,098.35x = 1,146,504,989,245.01
  5. Step 5: Solve for x
    x = 1,146,504,989,245.01/1,223,098.35
  6. Step 6: Final answer
    x = 937,377.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.