Home / 426,401.78-588,435.33-235,415.54

Finding the Fourth Proportional to 426,401.78, 588,435.33 and 235,415.54

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Solution

The fourth proportional to 426,401.78, 588,435.33 and 235,415.54 is: 324,873.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,401.78 : 588,435.33 = 235,415.54 : x
  2. Step 2: Convert to fraction form
    426,401.78/588,435.33 = 235,415.54/x
  3. Step 3: Cross multiply
    426,401.78x = 588,435.33 × 235,415.54
  4. Step 4: Simplify right side
    426,401.78x = 138,526,820,967.03
  5. Step 5: Solve for x
    x = 138,526,820,967.03/426,401.78
  6. Step 6: Final answer
    x = 324,873.93

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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.