Home / 779,219.80-1,168,822.20-419,558.74

Finding the Fourth Proportional to 779,219.80, 1,168,822.20 and 419,558.74

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Solution

The fourth proportional to 779,219.80, 1,168,822.20 and 419,558.74 is: 629,334.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,219.80 : 1,168,822.20 = 419,558.74 : x
  2. Step 2: Convert to fraction form
    779,219.80/1,168,822.20 = 419,558.74/x
  3. Step 3: Cross multiply
    779,219.80x = 1,168,822.20 × 419,558.74
  4. Step 4: Simplify right side
    779,219.80x = 490,389,568,167.32
  5. Step 5: Solve for x
    x = 490,389,568,167.32/779,219.80
  6. Step 6: Final answer
    x = 629,334.07

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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.