Home / 691,839.60-1,037,759.40-376,911.60

Finding the Fourth Proportional to 691,839.60, 1,037,759.40 and 376,911.60

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Solution

The fourth proportional to 691,839.60, 1,037,759.40 and 376,911.60 is: 565,367.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,839.60 : 1,037,759.40 = 376,911.60 : x
  2. Step 2: Convert to fraction form
    691,839.60/1,037,759.40 = 376,911.60/x
  3. Step 3: Cross multiply
    691,839.60x = 1,037,759.40 × 376,911.60
  4. Step 4: Simplify right side
    691,839.60x = 391,143,555,869.04
  5. Step 5: Solve for x
    x = 391,143,555,869.04/691,839.60
  6. Step 6: Final answer
    x = 565,367.40

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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.