Home / 1,340,257.80-1,849,555.80-728,412.06

Finding the Fourth Proportional to 1,340,257.80, 1,849,555.80 and 728,412.06

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Solution

The fourth proportional to 1,340,257.80, 1,849,555.80 and 728,412.06 is: 1,005,208.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,257.80 : 1,849,555.80 = 728,412.06 : x
  2. Step 2: Convert to fraction form
    1,340,257.80/1,849,555.80 = 728,412.06/x
  3. Step 3: Cross multiply
    1,340,257.80x = 1,849,555.80 × 728,412.06
  4. Step 4: Simplify right side
    1,340,257.80x = 1,347,238,750,362.95
  5. Step 5: Solve for x
    x = 1,347,238,750,362.95/1,340,257.80
  6. Step 6: Final answer
    x = 1,005,208.66

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.