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Finding the Fourth Proportional to 1,394,385, 1,924,251.33 and 790,773

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Solution

The fourth proportional to 1,394,385, 1,924,251.33 and 790,773 is: 1,091,266.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394,385 : 1,924,251.33 = 790,773 : x
  2. Step 2: Convert to fraction form
    1,394,385/1,924,251.33 = 790,773/x
  3. Step 3: Cross multiply
    1,394,385x = 1,924,251.33 × 790,773
  4. Step 4: Simplify right side
    1,394,385x = 1,521,645,996,978.09
  5. Step 5: Solve for x
    x = 1,521,645,996,978.09/1,394,385
  6. Step 6: Final answer
    x = 1,091,266.76

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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.