Home / 1,363,128.22-1,881,190.94-782,346.72

Finding the Fourth Proportional to 1,363,128.22, 1,881,190.94 and 782,346.72

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Solution

The fourth proportional to 1,363,128.22, 1,881,190.94 and 782,346.72 is: 1,079,680.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,363,128.22 : 1,881,190.94 = 782,346.72 : x
  2. Step 2: Convert to fraction form
    1,363,128.22/1,881,190.94 = 782,346.72/x
  3. Step 3: Cross multiply
    1,363,128.22x = 1,881,190.94 × 782,346.72
  4. Step 4: Simplify right side
    1,363,128.22x = 1,471,743,561,602.72
  5. Step 5: Solve for x
    x = 1,471,743,561,602.72/1,363,128.22
  6. Step 6: Final answer
    x = 1,079,680.94

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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.