Home / 746,756.24-1,120,135.20-185,790.80

Finding the Fourth Proportional to 746,756.24, 1,120,135.20 and 185,790.80

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Solution

The fourth proportional to 746,756.24, 1,120,135.20 and 185,790.80 is: 278,686.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,756.24 : 1,120,135.20 = 185,790.80 : x
  2. Step 2: Convert to fraction form
    746,756.24/1,120,135.20 = 185,790.80/x
  3. Step 3: Cross multiply
    746,756.24x = 1,120,135.20 × 185,790.80
  4. Step 4: Simplify right side
    746,756.24x = 208,110,814,916.16
  5. Step 5: Solve for x
    x = 208,110,814,916.16/746,756.24
  6. Step 6: Final answer
    x = 278,686.41

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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.