Home / 857,561.60-1,285,420.80-324,876.80

Finding the Fourth Proportional to 857,561.60, 1,285,420.80 and 324,876.80

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Solution

The fourth proportional to 857,561.60, 1,285,420.80 and 324,876.80 is: 486,966.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,561.60 : 1,285,420.80 = 324,876.80 : x
  2. Step 2: Convert to fraction form
    857,561.60/1,285,420.80 = 324,876.80/x
  3. Step 3: Cross multiply
    857,561.60x = 1,285,420.80 × 324,876.80
  4. Step 4: Simplify right side
    857,561.60x = 417,603,396,157.44
  5. Step 5: Solve for x
    x = 417,603,396,157.44/857,561.60
  6. Step 6: Final answer
    x = 486,966.06

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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.