Home / 885,718.27-1,328,788.31-286,679.53

Finding the Fourth Proportional to 885,718.27, 1,328,788.31 and 286,679.53

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Solution

The fourth proportional to 885,718.27, 1,328,788.31 and 286,679.53 is: 430,087.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,718.27 : 1,328,788.31 = 286,679.53 : x
  2. Step 2: Convert to fraction form
    885,718.27/1,328,788.31 = 286,679.53/x
  3. Step 3: Cross multiply
    885,718.27x = 1,328,788.31 × 286,679.53
  4. Step 4: Simplify right side
    885,718.27x = 380,936,408,180.29
  5. Step 5: Solve for x
    x = 380,936,408,180.29/885,718.27
  6. Step 6: Final answer
    x = 430,087.56

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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.