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Finding the Fourth Proportional to 418,879.32, 578,050.83 and 227,893.56

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Solution

The fourth proportional to 418,879.32, 578,050.83 and 227,893.56 is: 314,491.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,879.32 : 578,050.83 = 227,893.56 : x
  2. Step 2: Convert to fraction form
    418,879.32/578,050.83 = 227,893.56/x
  3. Step 3: Cross multiply
    418,879.32x = 578,050.83 × 227,893.56
  4. Step 4: Simplify right side
    418,879.32x = 131,734,061,509.66
  5. Step 5: Solve for x
    x = 131,734,061,509.66/418,879.32
  6. Step 6: Final answer
    x = 314,491.68

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1.5x scale

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.