Home / 486,304.50-671,212.18-285,165.30

Finding the Fourth Proportional to 486,304.50, 671,212.18 and 285,165.30

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Solution

The fourth proportional to 486,304.50, 671,212.18 and 285,165.30 is: 393,593.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,304.50 : 671,212.18 = 285,165.30 : x
  2. Step 2: Convert to fraction form
    486,304.50/671,212.18 = 285,165.30/x
  3. Step 3: Cross multiply
    486,304.50x = 671,212.18 × 285,165.30
  4. Step 4: Simplify right side
    486,304.50x = 191,406,418,604.38
  5. Step 5: Solve for x
    x = 191,406,418,604.38/486,304.50
  6. Step 6: Final answer
    x = 393,593.77

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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.