Home / 721,412.61-1,081,268.66-294,685.17

Finding the Fourth Proportional to 721,412.61, 1,081,268.66 and 294,685.17

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Solution

The fourth proportional to 721,412.61, 1,081,268.66 and 294,685.17 is: 441,680.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,412.61 : 1,081,268.66 = 294,685.17 : x
  2. Step 2: Convert to fraction form
    721,412.61/1,081,268.66 = 294,685.17/x
  3. Step 3: Cross multiply
    721,412.61x = 1,081,268.66 × 294,685.17
  4. Step 4: Simplify right side
    721,412.61x = 318,633,837,414.35
  5. Step 5: Solve for x
    x = 318,633,837,414.35/721,412.61
  6. Step 6: Final answer
    x = 441,680.44

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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.