Home / 691,571.76-1,037,320.92-211,799.40

Finding the Fourth Proportional to 691,571.76, 1,037,320.92 and 211,799.40

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Solution

The fourth proportional to 691,571.76, 1,037,320.92 and 211,799.40 is: 317,687.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,571.76 : 1,037,320.92 = 211,799.40 : x
  2. Step 2: Convert to fraction form
    691,571.76/1,037,320.92 = 211,799.40/x
  3. Step 3: Cross multiply
    691,571.76x = 1,037,320.92 × 211,799.40
  4. Step 4: Simplify right side
    691,571.76x = 219,703,948,463.45
  5. Step 5: Solve for x
    x = 219,703,948,463.45/691,571.76
  6. Step 6: Final answer
    x = 317,687.85

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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.