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Finding the Fourth Proportional to 2,894,328.16, 3,994,418.24 and 1,605,583.80

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Solution

The fourth proportional to 2,894,328.16, 3,994,418.24 and 1,605,583.80 is: 2,215,841.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,894,328.16 : 3,994,418.24 = 1,605,583.80 : x
  2. Step 2: Convert to fraction form
    2,894,328.16/3,994,418.24 = 1,605,583.80/x
  3. Step 3: Cross multiply
    2,894,328.16x = 3,994,418.24 × 1,605,583.80
  4. Step 4: Simplify right side
    2,894,328.16x = 6,413,373,216,568.51
  5. Step 5: Solve for x
    x = 6,413,373,216,568.51/2,894,328.16
  6. Step 6: Final answer
    x = 2,215,841.76

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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.