Home / 892,121.81-1,231,129.34-484,223.74

Finding the Fourth Proportional to 892,121.81, 1,231,129.34 and 484,223.74

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Solution

The fourth proportional to 892,121.81, 1,231,129.34 and 484,223.74 is: 668,229.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,121.81 : 1,231,129.34 = 484,223.74 : x
  2. Step 2: Convert to fraction form
    892,121.81/1,231,129.34 = 484,223.74/x
  3. Step 3: Cross multiply
    892,121.81x = 1,231,129.34 × 484,223.74
  4. Step 4: Simplify right side
    892,121.81x = 596,142,056,513.04
  5. Step 5: Solve for x
    x = 596,142,056,513.04/892,121.81
  6. Step 6: Final answer
    x = 668,229.44

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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.