Home / 672,106.20-1,008,159.30-298,129.20

Finding the Fourth Proportional to 672,106.20, 1,008,159.30 and 298,129.20

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Solution

The fourth proportional to 672,106.20, 1,008,159.30 and 298,129.20 is: 447,193.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,106.20 : 1,008,159.30 = 298,129.20 : x
  2. Step 2: Convert to fraction form
    672,106.20/1,008,159.30 = 298,129.20/x
  3. Step 3: Cross multiply
    672,106.20x = 1,008,159.30 × 298,129.20
  4. Step 4: Simplify right side
    672,106.20x = 300,561,725,581.56
  5. Step 5: Solve for x
    x = 300,561,725,581.56/672,106.20
  6. Step 6: Final answer
    x = 447,193.80

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Double scale
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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.