Home / 2,120,224.51-3,172,311.50-1,256,123.53

Finding the Fourth Proportional to 2,120,224.51, 3,172,311.50 and 1,256,123.53

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Solution

The fourth proportional to 2,120,224.51, 3,172,311.50 and 1,256,123.53 is: 1,879,430.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120,224.51 : 3,172,311.50 = 1,256,123.53 : x
  2. Step 2: Convert to fraction form
    2,120,224.51/3,172,311.50 = 1,256,123.53/x
  3. Step 3: Cross multiply
    2,120,224.51x = 3,172,311.50 × 1,256,123.53
  4. Step 4: Simplify right side
    2,120,224.51x = 3,984,815,119,639.60
  5. Step 5: Solve for x
    x = 3,984,815,119,639.60/2,120,224.51
  6. Step 6: Final answer
    x = 1,879,430.74

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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.