Home / 2,128,914.50-2,937,463.44-1,223,321.54

Finding the Fourth Proportional to 2,128,914.50, 2,937,463.44 and 1,223,321.54

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Solution

The fourth proportional to 2,128,914.50, 2,937,463.44 and 1,223,321.54 is: 1,687,931.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,914.50 : 2,937,463.44 = 1,223,321.54 : x
  2. Step 2: Convert to fraction form
    2,128,914.50/2,937,463.44 = 1,223,321.54/x
  3. Step 3: Cross multiply
    2,128,914.50x = 2,937,463.44 × 1,223,321.54
  4. Step 4: Simplify right side
    2,128,914.50x = 3,593,462,295,442.67
  5. Step 5: Solve for x
    x = 3,593,462,295,442.67/2,128,914.50
  6. Step 6: Final answer
    x = 1,687,931.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.