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Finding the Fourth Proportional to 1,267,932.89, 1,749,926.77 and 784,653.68

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Solution

The fourth proportional to 1,267,932.89, 1,749,926.77 and 784,653.68 is: 1,082,933.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,932.89 : 1,749,926.77 = 784,653.68 : x
  2. Step 2: Convert to fraction form
    1,267,932.89/1,749,926.77 = 784,653.68/x
  3. Step 3: Cross multiply
    1,267,932.89x = 1,749,926.77 × 784,653.68
  4. Step 4: Simplify right side
    1,267,932.89x = 1,373,086,482,224.20
  5. Step 5: Solve for x
    x = 1,373,086,482,224.20/1,267,932.89
  6. Step 6: Final answer
    x = 1,082,933.09

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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.