Home / 1,308,642.90-1,805,930.19-735,687.78

Finding the Fourth Proportional to 1,308,642.90, 1,805,930.19 and 735,687.78

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Solution

The fourth proportional to 1,308,642.90, 1,805,930.19 and 735,687.78 is: 1,015,250.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,642.90 : 1,805,930.19 = 735,687.78 : x
  2. Step 2: Convert to fraction form
    1,308,642.90/1,805,930.19 = 735,687.78/x
  3. Step 3: Cross multiply
    1,308,642.90x = 1,805,930.19 × 735,687.78
  4. Step 4: Simplify right side
    1,308,642.90x = 1,328,600,772,316.08
  5. Step 5: Solve for x
    x = 1,328,600,772,316.08/1,308,642.90
  6. Step 6: Final answer
    x = 1,015,250.82

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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.