Home / 1,413,706.64-2,120,977.92-815,097.20

Finding the Fourth Proportional to 1,413,706.64, 2,120,977.92 and 815,097.20

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Solution

The fourth proportional to 1,413,706.64, 2,120,977.92 and 815,097.20 is: 1,222,886.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,413,706.64 : 2,120,977.92 = 815,097.20 : x
  2. Step 2: Convert to fraction form
    1,413,706.64/2,120,977.92 = 815,097.20/x
  3. Step 3: Cross multiply
    1,413,706.64x = 2,120,977.92 × 815,097.20
  4. Step 4: Simplify right side
    1,413,706.64x = 1,728,803,163,853.82
  5. Step 5: Solve for x
    x = 1,728,803,163,853.82/1,413,706.64
  6. Step 6: Final answer
    x = 1,222,886.78

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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.