Home / 1,309,344.21-1,806,624.07-765,374.81

Finding the Fourth Proportional to 1,309,344.21, 1,806,624.07 and 765,374.81

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Solution

The fourth proportional to 1,309,344.21, 1,806,624.07 and 765,374.81 is: 1,056,058.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,344.21 : 1,806,624.07 = 765,374.81 : x
  2. Step 2: Convert to fraction form
    1,309,344.21/1,806,624.07 = 765,374.81/x
  3. Step 3: Cross multiply
    1,309,344.21x = 1,806,624.07 × 765,374.81
  4. Step 4: Simplify right side
    1,309,344.21x = 1,382,744,543,371.12
  5. Step 5: Solve for x
    x = 1,382,744,543,371.12/1,309,344.21
  6. Step 6: Final answer
    x = 1,056,058.85

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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.