Home / 671,258.57-1,006,787.85-221,981.80

Finding the Fourth Proportional to 671,258.57, 1,006,787.85 and 221,981.80

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Solution

The fourth proportional to 671,258.57, 1,006,787.85 and 221,981.80 is: 332,939.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,258.57 : 1,006,787.85 = 221,981.80 : x
  2. Step 2: Convert to fraction form
    671,258.57/1,006,787.85 = 221,981.80/x
  3. Step 3: Cross multiply
    671,258.57x = 1,006,787.85 × 221,981.80
  4. Step 4: Simplify right side
    671,258.57x = 223,488,576,644.16
  5. Step 5: Solve for x
    x = 223,488,576,644.16/671,258.57
  6. Step 6: Final answer
    x = 332,939.62

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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.