Home / 693,465.40-1,040,198.10-360,998.20

Finding the Fourth Proportional to 693,465.40, 1,040,198.10 and 360,998.20

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Solution

The fourth proportional to 693,465.40, 1,040,198.10 and 360,998.20 is: 541,497.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,465.40 : 1,040,198.10 = 360,998.20 : x
  2. Step 2: Convert to fraction form
    693,465.40/1,040,198.10 = 360,998.20/x
  3. Step 3: Cross multiply
    693,465.40x = 1,040,198.10 × 360,998.20
  4. Step 4: Simplify right side
    693,465.40x = 375,509,641,743.42
  5. Step 5: Solve for x
    x = 375,509,641,743.42/693,465.40
  6. Step 6: Final answer
    x = 541,497.30

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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.