Home / 1,224,041.76-1,689,143.82-680,163.48

Finding the Fourth Proportional to 1,224,041.76, 1,689,143.82 and 680,163.48

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Solution

The fourth proportional to 1,224,041.76, 1,689,143.82 and 680,163.48 is: 938,606.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,041.76 : 1,689,143.82 = 680,163.48 : x
  2. Step 2: Convert to fraction form
    1,224,041.76/1,689,143.82 = 680,163.48/x
  3. Step 3: Cross multiply
    1,224,041.76x = 1,689,143.82 × 680,163.48
  4. Step 4: Simplify right side
    1,224,041.76x = 1,148,893,938,831.69
  5. Step 5: Solve for x
    x = 1,148,893,938,831.69/1,224,041.76
  6. Step 6: Final answer
    x = 938,606.82

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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.