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Finding the Fourth Proportional to 1,394,382, 1,924,247.19 and 790,770

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Solution

The fourth proportional to 1,394,382, 1,924,247.19 and 790,770 is: 1,091,262.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394,382 : 1,924,247.19 = 790,770 : x
  2. Step 2: Convert to fraction form
    1,394,382/1,924,247.19 = 790,770/x
  3. Step 3: Cross multiply
    1,394,382x = 1,924,247.19 × 790,770
  4. Step 4: Simplify right side
    1,394,382x = 1,521,636,950,436.30
  5. Step 5: Solve for x
    x = 1,521,636,950,436.30/1,394,382
  6. Step 6: Final answer
    x = 1,091,262.62

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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.