Home / 1,225,143.86-1,690,618.50-681,259.43

Finding the Fourth Proportional to 1,225,143.86, 1,690,618.50 and 681,259.43

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Solution

The fourth proportional to 1,225,143.86, 1,690,618.50 and 681,259.43 is: 940,093.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,143.86 : 1,690,618.50 = 681,259.43 : x
  2. Step 2: Convert to fraction form
    1,225,143.86/1,690,618.50 = 681,259.43/x
  3. Step 3: Cross multiply
    1,225,143.86x = 1,690,618.50 × 681,259.43
  4. Step 4: Simplify right side
    1,225,143.86x = 1,151,749,799,884.00
  5. Step 5: Solve for x
    x = 1,151,749,799,884.00/1,225,143.86
  6. Step 6: Final answer
    x = 940,093.52

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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.