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Finding the Fourth Proportional to 334,610.64, 459,987.03 and 287,872.70

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Solution

The fourth proportional to 334,610.64, 459,987.03 and 287,872.70 is: 395,736.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,610.64 : 459,987.03 = 287,872.70 : x
  2. Step 2: Convert to fraction form
    334,610.64/459,987.03 = 287,872.70/x
  3. Step 3: Cross multiply
    334,610.64x = 459,987.03 × 287,872.70
  4. Step 4: Simplify right side
    334,610.64x = 132,417,705,991.15
  5. Step 5: Solve for x
    x = 132,417,705,991.15/334,610.64
  6. Step 6: Final answer
    x = 395,736.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.