Home / 419,012.12-578,249.84-237,731.70

Finding the Fourth Proportional to 419,012.12, 578,249.84 and 237,731.70

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Solution

The fourth proportional to 419,012.12, 578,249.84 and 237,731.70 is: 328,077.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,012.12 : 578,249.84 = 237,731.70 : x
  2. Step 2: Convert to fraction form
    419,012.12/578,249.84 = 237,731.70/x
  3. Step 3: Cross multiply
    419,012.12x = 578,249.84 × 237,731.70
  4. Step 4: Simplify right side
    419,012.12x = 137,468,317,487.93
  5. Step 5: Solve for x
    x = 137,468,317,487.93/419,012.12
  6. Step 6: Final answer
    x = 328,077.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.