Home / 1,555,587-2,146,711.50-840,195

Finding the Fourth Proportional to 1,555,587, 2,146,711.50 and 840,195

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Solution

The fourth proportional to 1,555,587, 2,146,711.50 and 840,195 is: 1,159,469.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,587 : 2,146,711.50 = 840,195 : x
  2. Step 2: Convert to fraction form
    1,555,587/2,146,711.50 = 840,195/x
  3. Step 3: Cross multiply
    1,555,587x = 2,146,711.50 × 840,195
  4. Step 4: Simplify right side
    1,555,587x = 1,803,656,268,742.50
  5. Step 5: Solve for x
    x = 1,803,656,268,742.50/1,555,587
  6. Step 6: Final answer
    x = 1,159,469.88

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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.