Home / 1,877,081.28-2,815,621.87-865,904.09

Finding the Fourth Proportional to 1,877,081.28, 2,815,621.87 and 865,904.09

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Solution

The fourth proportional to 1,877,081.28, 2,815,621.87 and 865,904.09 is: 1,298,856.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877,081.28 : 2,815,621.87 = 865,904.09 : x
  2. Step 2: Convert to fraction form
    1,877,081.28/2,815,621.87 = 865,904.09/x
  3. Step 3: Cross multiply
    1,877,081.28x = 2,815,621.87 × 865,904.09
  4. Step 4: Simplify right side
    1,877,081.28x = 2,438,058,476,883.58
  5. Step 5: Solve for x
    x = 2,438,058,476,883.58/1,877,081.28
  6. Step 6: Final answer
    x = 1,298,856.10

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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.