Home / 418,908.90-578,077.02-227,923.05

Finding the Fourth Proportional to 418,908.90, 578,077.02 and 227,923.05

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Solution

The fourth proportional to 418,908.90, 578,077.02 and 227,923.05 is: 314,524.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,908.90 : 578,077.02 = 227,923.05 : x
  2. Step 2: Convert to fraction form
    418,908.90/578,077.02 = 227,923.05/x
  3. Step 3: Cross multiply
    418,908.90x = 578,077.02 × 227,923.05
  4. Step 4: Simplify right side
    418,908.90x = 131,757,077,533.31
  5. Step 5: Solve for x
    x = 131,757,077,533.31/418,908.90
  6. Step 6: Final answer
    x = 314,524.42

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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.