Home / 676,776.88-1,015,176.84-256,250.80

Finding the Fourth Proportional to 676,776.88, 1,015,176.84 and 256,250.80

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Solution

The fourth proportional to 676,776.88, 1,015,176.84 and 256,250.80 is: 384,380.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,776.88 : 1,015,176.84 = 256,250.80 : x
  2. Step 2: Convert to fraction form
    676,776.88/1,015,176.84 = 256,250.80/x
  3. Step 3: Cross multiply
    676,776.88x = 1,015,176.84 × 256,250.80
  4. Step 4: Simplify right side
    676,776.88x = 260,139,877,391.47
  5. Step 5: Solve for x
    x = 260,139,877,391.47/676,776.88
  6. Step 6: Final answer
    x = 384,380.56

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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.