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Finding the Fourth Proportional to 418,645.60, 577,527.80 and 248,759.44

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Solution

The fourth proportional to 418,645.60, 577,527.80 and 248,759.44 is: 343,167.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,645.60 : 577,527.80 = 248,759.44 : x
  2. Step 2: Convert to fraction form
    418,645.60/577,527.80 = 248,759.44/x
  3. Step 3: Cross multiply
    418,645.60x = 577,527.80 × 248,759.44
  4. Step 4: Simplify right side
    418,645.60x = 143,665,492,112.43
  5. Step 5: Solve for x
    x = 143,665,492,112.43/418,645.60
  6. Step 6: Final answer
    x = 343,167.33

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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.