Home / 3,217,628.40-4,826,442.60-2,139,874.80

Finding the Fourth Proportional to 3,217,628.40, 4,826,442.60 and 2,139,874.80

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Solution

The fourth proportional to 3,217,628.40, 4,826,442.60 and 2,139,874.80 is: 3,209,812.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217,628.40 : 4,826,442.60 = 2,139,874.80 : x
  2. Step 2: Convert to fraction form
    3,217,628.40/4,826,442.60 = 2,139,874.80/x
  3. Step 3: Cross multiply
    3,217,628.40x = 4,826,442.60 × 2,139,874.80
  4. Step 4: Simplify right side
    3,217,628.40x = 10,327,982,893,386.48
  5. Step 5: Solve for x
    x = 10,327,982,893,386.48/3,217,628.40
  6. Step 6: Final answer
    x = 3,209,812.20

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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.