Home / 830,734.68-1,245,391.26-318,767.22

Finding the Fourth Proportional to 830,734.68, 1,245,391.26 and 318,767.22

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Solution

The fourth proportional to 830,734.68, 1,245,391.26 and 318,767.22 is: 477,878.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,734.68 : 1,245,391.26 = 318,767.22 : x
  2. Step 2: Convert to fraction form
    830,734.68/1,245,391.26 = 318,767.22/x
  3. Step 3: Cross multiply
    830,734.68x = 1,245,391.26 × 318,767.22
  4. Step 4: Simplify right side
    830,734.68x = 396,989,905,092.28
  5. Step 5: Solve for x
    x = 396,989,905,092.28/830,734.68
  6. Step 6: Final answer
    x = 477,878.10

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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.