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Finding the Fourth Proportional to 469,837.44, 648,376.44 and 278,889.12

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Solution

The fourth proportional to 469,837.44, 648,376.44 and 278,889.12 is: 384,867.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,837.44 : 648,376.44 = 278,889.12 : x
  2. Step 2: Convert to fraction form
    469,837.44/648,376.44 = 278,889.12/x
  3. Step 3: Cross multiply
    469,837.44x = 648,376.44 × 278,889.12
  4. Step 4: Simplify right side
    469,837.44x = 180,825,134,780.33
  5. Step 5: Solve for x
    x = 180,825,134,780.33/469,837.44
  6. Step 6: Final answer
    x = 384,867.44

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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.