Home / 2,182,078.47-3,011,052.60-1,215,298.74

Finding the Fourth Proportional to 2,182,078.47, 3,011,052.60 and 1,215,298.74

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Solution

The fourth proportional to 2,182,078.47, 3,011,052.60 and 1,215,298.74 is: 1,676,992.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,182,078.47 : 3,011,052.60 = 1,215,298.74 : x
  2. Step 2: Convert to fraction form
    2,182,078.47/3,011,052.60 = 1,215,298.74/x
  3. Step 3: Cross multiply
    2,182,078.47x = 3,011,052.60 × 1,215,298.74
  4. Step 4: Simplify right side
    2,182,078.47x = 3,659,328,430,853.72
  5. Step 5: Solve for x
    x = 3,659,328,430,853.72/2,182,078.47
  6. Step 6: Final answer
    x = 1,676,992.13

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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.