Home / 807,421.82-1,211,369.57-238,817.91

Finding the Fourth Proportional to 807,421.82, 1,211,369.57 and 238,817.91

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Solution

The fourth proportional to 807,421.82, 1,211,369.57 and 238,817.91 is: 358,296.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,421.82 : 1,211,369.57 = 238,817.91 : x
  2. Step 2: Convert to fraction form
    807,421.82/1,211,369.57 = 238,817.91/x
  3. Step 3: Cross multiply
    807,421.82x = 1,211,369.57 × 238,817.91
  4. Step 4: Simplify right side
    807,421.82x = 289,296,747,750.91
  5. Step 5: Solve for x
    x = 289,296,747,750.91/807,421.82
  6. Step 6: Final answer
    x = 358,296.92

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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.