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Finding the Fourth Proportional to 426,403.57, 588,435.29 and 235,415.56

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Solution

The fourth proportional to 426,403.57, 588,435.29 and 235,415.56 is: 324,872.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,403.57 : 588,435.29 = 235,415.56 : x
  2. Step 2: Convert to fraction form
    426,403.57/588,435.29 = 235,415.56/x
  3. Step 3: Cross multiply
    426,403.57x = 588,435.29 × 235,415.56
  4. Step 4: Simplify right side
    426,403.57x = 138,526,823,319.11
  5. Step 5: Solve for x
    x = 138,526,823,319.11/426,403.57
  6. Step 6: Final answer
    x = 324,872.57

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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.