Home / 1,126,886.96-1,690,392-285,446

Finding the Fourth Proportional to 1,126,886.96, 1,690,392 and 285,446

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Solution

The fourth proportional to 1,126,886.96, 1,690,392 and 285,446 is: 428,184.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,886.96 : 1,690,392 = 285,446 : x
  2. Step 2: Convert to fraction form
    1,126,886.96/1,690,392 = 285,446/x
  3. Step 3: Cross multiply
    1,126,886.96x = 1,690,392 × 285,446
  4. Step 4: Simplify right side
    1,126,886.96x = 482,515,634,832
  5. Step 5: Solve for x
    x = 482,515,634,832/1,126,886.96
  6. Step 6: Final answer
    x = 428,184.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.