Home / 1,321,049.61-1,981,570.77-374,428.53

Finding the Fourth Proportional to 1,321,049.61, 1,981,570.77 and 374,428.53

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Solution

The fourth proportional to 1,321,049.61, 1,981,570.77 and 374,428.53 is: 561,641.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,049.61 : 1,981,570.77 = 374,428.53 : x
  2. Step 2: Convert to fraction form
    1,321,049.61/1,981,570.77 = 374,428.53/x
  3. Step 3: Cross multiply
    1,321,049.61x = 1,981,570.77 × 374,428.53
  4. Step 4: Simplify right side
    1,321,049.61x = 741,956,630,502.07
  5. Step 5: Solve for x
    x = 741,956,630,502.07/1,321,049.61
  6. Step 6: Final answer
    x = 561,641.76

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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.