Home / 419,330.94-578,670.97-238,041.28

Finding the Fourth Proportional to 419,330.94, 578,670.97 and 238,041.28

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Solution

The fourth proportional to 419,330.94, 578,670.97 and 238,041.28 is: 328,493.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,330.94 : 578,670.97 = 238,041.28 : x
  2. Step 2: Convert to fraction form
    419,330.94/578,670.97 = 238,041.28/x
  3. Step 3: Cross multiply
    419,330.94x = 578,670.97 × 238,041.28
  4. Step 4: Simplify right side
    419,330.94x = 137,747,579,976.43
  5. Step 5: Solve for x
    x = 137,747,579,976.43/419,330.94
  6. Step 6: Final answer
    x = 328,493.72

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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.