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Finding the Fourth Proportional to 491,588.24, 678,384.24 and 276,727.64

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Solution

The fourth proportional to 491,588.24, 678,384.24 and 276,727.64 is: 381,879.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,588.24 : 678,384.24 = 276,727.64 : x
  2. Step 2: Convert to fraction form
    491,588.24/678,384.24 = 276,727.64/x
  3. Step 3: Cross multiply
    491,588.24x = 678,384.24 × 276,727.64
  4. Step 4: Simplify right side
    491,588.24x = 187,727,666,356.47
  5. Step 5: Solve for x
    x = 187,727,666,356.47/491,588.24
  6. Step 6: Final answer
    x = 381,879.90

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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.