Home / 742,511.49-1,111,883.30-622,252.21

Finding the Fourth Proportional to 742,511.49, 1,111,883.30 and 622,252.21

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Solution

The fourth proportional to 742,511.49, 1,111,883.30 and 622,252.21 is: 931,799.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,511.49 : 1,111,883.30 = 622,252.21 : x
  2. Step 2: Convert to fraction form
    742,511.49/1,111,883.30 = 622,252.21/x
  3. Step 3: Cross multiply
    742,511.49x = 1,111,883.30 × 622,252.21
  4. Step 4: Simplify right side
    742,511.49x = 691,871,840,687.09
  5. Step 5: Solve for x
    x = 691,871,840,687.09/742,511.49
  6. Step 6: Final answer
    x = 931,799.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.