Home / 905,045.11-1,357,566.48-231,126.90

Finding the Fourth Proportional to 905,045.11, 1,357,566.48 and 231,126.90

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Solution

The fourth proportional to 905,045.11, 1,357,566.48 and 231,126.90 is: 346,690.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,045.11 : 1,357,566.48 = 231,126.90 : x
  2. Step 2: Convert to fraction form
    905,045.11/1,357,566.48 = 231,126.90/x
  3. Step 3: Cross multiply
    905,045.11x = 1,357,566.48 × 231,126.90
  4. Step 4: Simplify right side
    905,045.11x = 313,770,134,611.75
  5. Step 5: Solve for x
    x = 313,770,134,611.75/905,045.11
  6. Step 6: Final answer
    x = 346,690.05

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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.