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Finding the Fourth Proportional to 418,996.56, 578,277.53 and 246,859.49

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Solution

The fourth proportional to 418,996.56, 578,277.53 and 246,859.49 is: 340,702.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,996.56 : 578,277.53 = 246,859.49 : x
  2. Step 2: Convert to fraction form
    418,996.56/578,277.53 = 246,859.49/x
  3. Step 3: Cross multiply
    418,996.56x = 578,277.53 × 246,859.49
  4. Step 4: Simplify right side
    418,996.56x = 142,753,292,008.58
  5. Step 5: Solve for x
    x = 142,753,292,008.58/418,996.56
  6. Step 6: Final answer
    x = 340,702.78

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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.