Home / 1,931,456.62-2,665,390.89-1,071,994.78

Finding the Fourth Proportional to 1,931,456.62, 2,665,390.89 and 1,071,994.78

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Solution

The fourth proportional to 1,931,456.62, 2,665,390.89 and 1,071,994.78 is: 1,479,342.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,931,456.62 : 2,665,390.89 = 1,071,994.78 : x
  2. Step 2: Convert to fraction form
    1,931,456.62/2,665,390.89 = 1,071,994.78/x
  3. Step 3: Cross multiply
    1,931,456.62x = 2,665,390.89 × 1,071,994.78
  4. Step 4: Simplify right side
    1,931,456.62x = 2,857,285,120,739.55
  5. Step 5: Solve for x
    x = 2,857,285,120,739.55/1,931,456.62
  6. Step 6: Final answer
    x = 1,479,342.11

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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.