Home / 808,074.27-1,115,274.15-486,109.80

Finding the Fourth Proportional to 808,074.27, 1,115,274.15 and 486,109.80

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Solution

The fourth proportional to 808,074.27, 1,115,274.15 and 486,109.80 is: 670,910.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,074.27 : 1,115,274.15 = 486,109.80 : x
  2. Step 2: Convert to fraction form
    808,074.27/1,115,274.15 = 486,109.80/x
  3. Step 3: Cross multiply
    808,074.27x = 1,115,274.15 × 486,109.80
  4. Step 4: Simplify right side
    808,074.27x = 542,145,694,001.67
  5. Step 5: Solve for x
    x = 542,145,694,001.67/808,074.27
  6. Step 6: Final answer
    x = 670,910.72

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.