Home / 1,256,066.40-1,733,761.90-998,400.54

Finding the Fourth Proportional to 1,256,066.40, 1,733,761.90 and 998,400.54

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Solution

The fourth proportional to 1,256,066.40, 1,733,761.90 and 998,400.54 is: 1,378,102.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,066.40 : 1,733,761.90 = 998,400.54 : x
  2. Step 2: Convert to fraction form
    1,256,066.40/1,733,761.90 = 998,400.54/x
  3. Step 3: Cross multiply
    1,256,066.40x = 1,733,761.90 × 998,400.54
  4. Step 4: Simplify right side
    1,256,066.40x = 1,730,988,817,191.43
  5. Step 5: Solve for x
    x = 1,730,988,817,191.43/1,256,066.40
  6. Step 6: Final answer
    x = 1,378,102.95

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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.