Home / 676,789.89-1,015,410.93-221,401.89

Finding the Fourth Proportional to 676,789.89, 1,015,410.93 and 221,401.89

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Solution

The fourth proportional to 676,789.89, 1,015,410.93 and 221,401.89 is: 332,176.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,789.89 : 1,015,410.93 = 221,401.89 : x
  2. Step 2: Convert to fraction form
    676,789.89/1,015,410.93 = 221,401.89/x
  3. Step 3: Cross multiply
    676,789.89x = 1,015,410.93 × 221,401.89
  4. Step 4: Simplify right side
    676,789.89x = 224,813,899,028.66
  5. Step 5: Solve for x
    x = 224,813,899,028.66/676,789.89
  6. Step 6: Final answer
    x = 332,176.80

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1.5x scale

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.