Home / 385,917.71-579,074.25-183,742.61

Finding the Fourth Proportional to 385,917.71, 579,074.25 and 183,742.61

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Solution

The fourth proportional to 385,917.71, 579,074.25 and 183,742.61 is: 275,708.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,917.71 : 579,074.25 = 183,742.61 : x
  2. Step 2: Convert to fraction form
    385,917.71/579,074.25 = 183,742.61/x
  3. Step 3: Cross multiply
    385,917.71x = 579,074.25 × 183,742.61
  4. Step 4: Simplify right side
    385,917.71x = 106,400,614,078.79
  5. Step 5: Solve for x
    x = 106,400,614,078.79/385,917.71
  6. Step 6: Final answer
    x = 275,708.04

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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.