Home / 459,585.20-689,376.77-218,968.73

Finding the Fourth Proportional to 459,585.20, 689,376.77 and 218,968.73

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Solution

The fourth proportional to 459,585.20, 689,376.77 and 218,968.73 is: 328,452.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,585.20 : 689,376.77 = 218,968.73 : x
  2. Step 2: Convert to fraction form
    459,585.20/689,376.77 = 218,968.73/x
  3. Step 3: Cross multiply
    459,585.20x = 689,376.77 × 218,968.73
  4. Step 4: Simplify right side
    459,585.20x = 150,951,951,276.68
  5. Step 5: Solve for x
    x = 150,951,951,276.68/459,585.20
  6. Step 6: Final answer
    x = 328,452.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.