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Finding the Fourth Proportional to 450,665.04, 622,074.30 and 278,714.64

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Solution

The fourth proportional to 450,665.04, 622,074.30 and 278,714.64 is: 384,723.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,665.04 : 622,074.30 = 278,714.64 : x
  2. Step 2: Convert to fraction form
    450,665.04/622,074.30 = 278,714.64/x
  3. Step 3: Cross multiply
    450,665.04x = 622,074.30 × 278,714.64
  4. Step 4: Simplify right side
    450,665.04x = 173,381,214,577.75
  5. Step 5: Solve for x
    x = 173,381,214,577.75/450,665.04
  6. Step 6: Final answer
    x = 384,723.02

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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.