Home / 1,224,790.58-1,690,132.15-680,912.38

Finding the Fourth Proportional to 1,224,790.58, 1,690,132.15 and 680,912.38

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Solution

The fourth proportional to 1,224,790.58, 1,690,132.15 and 680,912.38 is: 939,615.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,790.58 : 1,690,132.15 = 680,912.38 : x
  2. Step 2: Convert to fraction form
    1,224,790.58/1,690,132.15 = 680,912.38/x
  3. Step 3: Cross multiply
    1,224,790.58x = 1,690,132.15 × 680,912.38
  4. Step 4: Simplify right side
    1,224,790.58x = 1,150,831,903,904.69
  5. Step 5: Solve for x
    x = 1,150,831,903,904.69/1,224,790.58
  6. Step 6: Final answer
    x = 939,615.25

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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.