Home / 1,247,398.56-1,721,852.64-738,099.84

Finding the Fourth Proportional to 1,247,398.56, 1,721,852.64 and 738,099.84

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Solution

The fourth proportional to 1,247,398.56, 1,721,852.64 and 738,099.84 is: 1,018,839.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,398.56 : 1,721,852.64 = 738,099.84 : x
  2. Step 2: Convert to fraction form
    1,247,398.56/1,721,852.64 = 738,099.84/x
  3. Step 3: Cross multiply
    1,247,398.56x = 1,721,852.64 × 738,099.84
  4. Step 4: Simplify right side
    1,247,398.56x = 1,270,899,158,087.58
  5. Step 5: Solve for x
    x = 1,270,899,158,087.58/1,247,398.56
  6. Step 6: Final answer
    x = 1,018,839.69

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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.