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Finding the Fourth Proportional to 1,609,714.80, 2,414,863.80 and 808,981.20

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Solution

The fourth proportional to 1,609,714.80, 2,414,863.80 and 808,981.20 is: 1,213,618.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609,714.80 : 2,414,863.80 = 808,981.20 : x
  2. Step 2: Convert to fraction form
    1,609,714.80/2,414,863.80 = 808,981.20/x
  3. Step 3: Cross multiply
    1,609,714.80x = 2,414,863.80 × 808,981.20
  4. Step 4: Simplify right side
    1,609,714.80x = 1,953,579,414,760.56
  5. Step 5: Solve for x
    x = 1,953,579,414,760.56/1,609,714.80
  6. Step 6: Final answer
    x = 1,213,618.35

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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.