Home / 779,919.45-1,170,043.20-442,684.05

Finding the Fourth Proportional to 779,919.45, 1,170,043.20 and 442,684.05

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Solution

The fourth proportional to 779,919.45, 1,170,043.20 and 442,684.05 is: 664,119.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,919.45 : 1,170,043.20 = 442,684.05 : x
  2. Step 2: Convert to fraction form
    779,919.45/1,170,043.20 = 442,684.05/x
  3. Step 3: Cross multiply
    779,919.45x = 1,170,043.20 × 442,684.05
  4. Step 4: Simplify right side
    779,919.45x = 517,959,462,450.96
  5. Step 5: Solve for x
    x = 517,959,462,450.96/779,919.45
  6. Step 6: Final answer
    x = 664,119.18

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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.