Home / 676,920.80-1,015,381.20-171,480.80

Finding the Fourth Proportional to 676,920.80, 1,015,381.20 and 171,480.80

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Solution

The fourth proportional to 676,920.80, 1,015,381.20 and 171,480.80 is: 257,221.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,920.80 : 1,015,381.20 = 171,480.80 : x
  2. Step 2: Convert to fraction form
    676,920.80/1,015,381.20 = 171,480.80/x
  3. Step 3: Cross multiply
    676,920.80x = 1,015,381.20 × 171,480.80
  4. Step 4: Simplify right side
    676,920.80x = 174,118,380,480.96
  5. Step 5: Solve for x
    x = 174,118,380,480.96/676,920.80
  6. Step 6: Final answer
    x = 257,221.20

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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.