Home / 892,121.34-1,231,128.69-484,223.26

Finding the Fourth Proportional to 892,121.34, 1,231,128.69 and 484,223.26

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Solution

The fourth proportional to 892,121.34, 1,231,128.69 and 484,223.26 is: 668,228.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    892,121.34 : 1,231,128.69 = 484,223.26 : x
  2. Step 2: Convert to fraction form
    892,121.34/1,231,128.69 = 484,223.26/x
  3. Step 3: Cross multiply
    892,121.34x = 1,231,128.69 × 484,223.26
  4. Step 4: Simplify right side
    892,121.34x = 596,141,152,713.25
  5. Step 5: Solve for x
    x = 596,141,152,713.25/892,121.34
  6. Step 6: Final answer
    x = 668,228.78

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Double scale
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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.