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Finding the Fourth Proportional to 418,641.60, 577,522.28 and 248,755.44

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Solution

The fourth proportional to 418,641.60, 577,522.28 and 248,755.44 is: 343,161.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,641.60 : 577,522.28 = 248,755.44 : x
  2. Step 2: Convert to fraction form
    418,641.60/577,522.28 = 248,755.44/x
  3. Step 3: Cross multiply
    418,641.60x = 577,522.28 × 248,755.44
  4. Step 4: Simplify right side
    418,641.60x = 143,661,808,871.20
  5. Step 5: Solve for x
    x = 143,661,808,871.20/418,641.60
  6. Step 6: Final answer
    x = 343,161.81

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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.