Home / 426,308.84-588,481.38-290,790.12

Finding the Fourth Proportional to 426,308.84, 588,481.38 and 290,790.12

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Solution

The fourth proportional to 426,308.84, 588,481.38 and 290,790.12 is: 401,409.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,308.84 : 588,481.38 = 290,790.12 : x
  2. Step 2: Convert to fraction form
    426,308.84/588,481.38 = 290,790.12/x
  3. Step 3: Cross multiply
    426,308.84x = 588,481.38 × 290,790.12
  4. Step 4: Simplify right side
    426,308.84x = 171,124,571,107.97
  5. Step 5: Solve for x
    x = 171,124,571,107.97/426,308.84
  6. Step 6: Final answer
    x = 401,409.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.