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Finding the Fourth Proportional to 418,679.88, 577,765.88 and 237,408.36

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Solution

The fourth proportional to 418,679.88, 577,765.88 and 237,408.36 is: 327,616.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,679.88 : 577,765.88 = 237,408.36 : x
  2. Step 2: Convert to fraction form
    418,679.88/577,765.88 = 237,408.36/x
  3. Step 3: Cross multiply
    418,679.88x = 577,765.88 × 237,408.36
  4. Step 4: Simplify right side
    418,679.88x = 137,166,450,034.76
  5. Step 5: Solve for x
    x = 137,166,450,034.76/418,679.88
  6. Step 6: Final answer
    x = 327,616.53

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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.