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Finding the Fourth Proportional to 1,345,408, 1,856,677.56 and 733,555.78

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Solution

The fourth proportional to 1,345,408, 1,856,677.56 and 733,555.78 is: 1,012,314.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,408 : 1,856,677.56 = 733,555.78 : x
  2. Step 2: Convert to fraction form
    1,345,408/1,856,677.56 = 733,555.78/x
  3. Step 3: Cross multiply
    1,345,408x = 1,856,677.56 × 733,555.78
  4. Step 4: Simplify right side
    1,345,408x = 1,361,976,555,734.30
  5. Step 5: Solve for x
    x = 1,361,976,555,734.30/1,345,408
  6. Step 6: Final answer
    x = 1,012,314.89

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Similar ratio
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1.5x scale

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.