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Finding the Fourth Proportional to 1,345,406, 1,856,674.80 and 733,553.78

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Solution

The fourth proportional to 1,345,406, 1,856,674.80 and 733,553.78 is: 1,012,312.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,406 : 1,856,674.80 = 733,553.78 : x
  2. Step 2: Convert to fraction form
    1,345,406/1,856,674.80 = 733,553.78/x
  3. Step 3: Cross multiply
    1,345,406x = 1,856,674.80 × 733,553.78
  4. Step 4: Simplify right side
    1,345,406x = 1,361,970,817,770.74
  5. Step 5: Solve for x
    x = 1,361,970,817,770.74/1,345,406
  6. Step 6: Final answer
    x = 1,012,312.13

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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.