Home / 892,128.93-1,231,139.15-484,230.85

Finding the Fourth Proportional to 892,128.93, 1,231,139.15 and 484,230.85

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Solution

The fourth proportional to 892,128.93, 1,231,139.15 and 484,230.85 is: 668,239.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,128.93 : 1,231,139.15 = 484,230.85 : x
  2. Step 2: Convert to fraction form
    892,128.93/1,231,139.15 = 484,230.85/x
  3. Step 3: Cross multiply
    892,128.93x = 1,231,139.15 × 484,230.85
  4. Step 4: Simplify right side
    892,128.93x = 596,155,557,072.78
  5. Step 5: Solve for x
    x = 596,155,557,072.78/892,128.93
  6. Step 6: Final answer
    x = 668,239.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.