Home / 1,239,108.30-1,858,662.45-397,745.10

Finding the Fourth Proportional to 1,239,108.30, 1,858,662.45 and 397,745.10

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Solution

The fourth proportional to 1,239,108.30, 1,858,662.45 and 397,745.10 is: 596,617.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,108.30 : 1,858,662.45 = 397,745.10 : x
  2. Step 2: Convert to fraction form
    1,239,108.30/1,858,662.45 = 397,745.10/x
  3. Step 3: Cross multiply
    1,239,108.30x = 1,858,662.45 × 397,745.10
  4. Step 4: Simplify right side
    1,239,108.30x = 739,273,882,041.50
  5. Step 5: Solve for x
    x = 739,273,882,041.50/1,239,108.30
  6. Step 6: Final answer
    x = 596,617.65

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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.