Home / 2,826,409.60-4,238,155.20-831,606.40

Finding the Fourth Proportional to 2,826,409.60, 4,238,155.20 and 831,606.40

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Solution

The fourth proportional to 2,826,409.60, 4,238,155.20 and 831,606.40 is: 1,246,980.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,826,409.60 : 4,238,155.20 = 831,606.40 : x
  2. Step 2: Convert to fraction form
    2,826,409.60/4,238,155.20 = 831,606.40/x
  3. Step 3: Cross multiply
    2,826,409.60x = 4,238,155.20 × 831,606.40
  4. Step 4: Simplify right side
    2,826,409.60x = 3,524,476,988,513.28
  5. Step 5: Solve for x
    x = 3,524,476,988,513.28/2,826,409.60
  6. Step 6: Final answer
    x = 1,246,980.26

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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.