Home / 1,243,404.60-1,865,106.90-1,215,756.60

Finding the Fourth Proportional to 1,243,404.60, 1,865,106.90 and 1,215,756.60

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Solution

The fourth proportional to 1,243,404.60, 1,865,106.90 and 1,215,756.60 is: 1,823,634.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,404.60 : 1,865,106.90 = 1,215,756.60 : x
  2. Step 2: Convert to fraction form
    1,243,404.60/1,865,106.90 = 1,215,756.60/x
  3. Step 3: Cross multiply
    1,243,404.60x = 1,865,106.90 × 1,215,756.60
  4. Step 4: Simplify right side
    1,243,404.60x = 2,267,516,023,380.54
  5. Step 5: Solve for x
    x = 2,267,516,023,380.54/1,243,404.60
  6. Step 6: Final answer
    x = 1,823,634.90

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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.