Home / 1,230,128.20-1,845,192.30-668,873.80

Finding the Fourth Proportional to 1,230,128.20, 1,845,192.30 and 668,873.80

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Solution

The fourth proportional to 1,230,128.20, 1,845,192.30 and 668,873.80 is: 1,003,310.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,128.20 : 1,845,192.30 = 668,873.80 : x
  2. Step 2: Convert to fraction form
    1,230,128.20/1,845,192.30 = 668,873.80/x
  3. Step 3: Cross multiply
    1,230,128.20x = 1,845,192.30 × 668,873.80
  4. Step 4: Simplify right side
    1,230,128.20x = 1,234,200,785,431.74
  5. Step 5: Solve for x
    x = 1,234,200,785,431.74/1,230,128.20
  6. Step 6: Final answer
    x = 1,003,310.70

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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.