Home / 2,652,686.95-3,979,025.45-831,191.33

Finding the Fourth Proportional to 2,652,686.95, 3,979,025.45 and 831,191.33

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Solution

The fourth proportional to 2,652,686.95, 3,979,025.45 and 831,191.33 is: 1,246,785.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,652,686.95 : 3,979,025.45 = 831,191.33 : x
  2. Step 2: Convert to fraction form
    2,652,686.95/3,979,025.45 = 831,191.33/x
  3. Step 3: Cross multiply
    2,652,686.95x = 3,979,025.45 × 831,191.33
  4. Step 4: Simplify right side
    2,652,686.95x = 3,307,331,455,889.35
  5. Step 5: Solve for x
    x = 3,307,331,455,889.35/2,652,686.95
  6. Step 6: Final answer
    x = 1,246,785.44

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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.