Home / 676,920.20-1,015,769.10-256,497.80

Finding the Fourth Proportional to 676,920.20, 1,015,769.10 and 256,497.80

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Solution

The fourth proportional to 676,920.20, 1,015,769.10 and 256,497.80 is: 384,894.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,920.20 : 1,015,769.10 = 256,497.80 : x
  2. Step 2: Convert to fraction form
    676,920.20/1,015,769.10 = 256,497.80/x
  3. Step 3: Cross multiply
    676,920.20x = 1,015,769.10 × 256,497.80
  4. Step 4: Simplify right side
    676,920.20x = 260,542,539,457.98
  5. Step 5: Solve for x
    x = 260,542,539,457.98/676,920.20
  6. Step 6: Final answer
    x = 384,894.02

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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.