Home / 2,652,686.45-3,979,024.70-831,190.83

Finding the Fourth Proportional to 2,652,686.45, 3,979,024.70 and 831,190.83

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Solution

The fourth proportional to 2,652,686.45, 3,979,024.70 and 831,190.83 is: 1,246,784.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,652,686.45 : 3,979,024.70 = 831,190.83 : x
  2. Step 2: Convert to fraction form
    2,652,686.45/3,979,024.70 = 831,190.83/x
  3. Step 3: Cross multiply
    2,652,686.45x = 3,979,024.70 × 831,190.83
  4. Step 4: Simplify right side
    2,652,686.45x = 3,307,328,842,983.50
  5. Step 5: Solve for x
    x = 3,307,328,842,983.50/2,652,686.45
  6. Step 6: Final answer
    x = 1,246,784.69

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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.