Home / 691,126.70-1,036,690.05-292,217.90

Finding the Fourth Proportional to 691,126.70, 1,036,690.05 and 292,217.90

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Solution

The fourth proportional to 691,126.70, 1,036,690.05 and 292,217.90 is: 438,326.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,126.70 : 1,036,690.05 = 292,217.90 : x
  2. Step 2: Convert to fraction form
    691,126.70/1,036,690.05 = 292,217.90/x
  3. Step 3: Cross multiply
    691,126.70x = 1,036,690.05 × 292,217.90
  4. Step 4: Simplify right side
    691,126.70x = 302,939,389,361.90
  5. Step 5: Solve for x
    x = 302,939,389,361.90/691,126.70
  6. Step 6: Final answer
    x = 438,326.85

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Double scale
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Similar ratio
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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.