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Finding the Fourth Proportional to 1,821,612.24, 2,734,085.34 and 923,673.78

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Solution

The fourth proportional to 1,821,612.24, 2,734,085.34 and 923,673.78 is: 1,386,355.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821,612.24 : 2,734,085.34 = 923,673.78 : x
  2. Step 2: Convert to fraction form
    1,821,612.24/2,734,085.34 = 923,673.78/x
  3. Step 3: Cross multiply
    1,821,612.24x = 2,734,085.34 × 923,673.78
  4. Step 4: Simplify right side
    1,821,612.24x = 2,525,402,940,840.39
  5. Step 5: Solve for x
    x = 2,525,402,940,840.39/1,821,612.24
  6. Step 6: Final answer
    x = 1,386,355.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.