Home / 672,810.92-1,009,220.06-199,500.20

Finding the Fourth Proportional to 672,810.92, 1,009,220.06 and 199,500.20

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Solution

The fourth proportional to 672,810.92, 1,009,220.06 and 199,500.20 is: 299,251.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,810.92 : 1,009,220.06 = 199,500.20 : x
  2. Step 2: Convert to fraction form
    672,810.92/1,009,220.06 = 199,500.20/x
  3. Step 3: Cross multiply
    672,810.92x = 1,009,220.06 × 199,500.20
  4. Step 4: Simplify right side
    672,810.92x = 201,339,603,814.01
  5. Step 5: Solve for x
    x = 201,339,603,814.01/672,810.92
  6. Step 6: Final answer
    x = 299,251.39

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.