Home / 917,755.86-1,266,538.62-627,974.86

Finding the Fourth Proportional to 917,755.86, 1,266,538.62 and 627,974.86

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Solution

The fourth proportional to 917,755.86, 1,266,538.62 and 627,974.86 is: 866,629.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,755.86 : 1,266,538.62 = 627,974.86 : x
  2. Step 2: Convert to fraction form
    917,755.86/1,266,538.62 = 627,974.86/x
  3. Step 3: Cross multiply
    917,755.86x = 1,266,538.62 × 627,974.86
  4. Step 4: Simplify right side
    917,755.86x = 795,354,412,579.09
  5. Step 5: Solve for x
    x = 795,354,412,579.09/917,755.86
  6. Step 6: Final answer
    x = 866,629.62

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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.