Home / 1,108,428.56-1,662,642.84-266,980.31

Finding the Fourth Proportional to 1,108,428.56, 1,662,642.84 and 266,980.31

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Solution

The fourth proportional to 1,108,428.56, 1,662,642.84 and 266,980.31 is: 400,470.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,428.56 : 1,662,642.84 = 266,980.31 : x
  2. Step 2: Convert to fraction form
    1,108,428.56/1,662,642.84 = 266,980.31/x
  3. Step 3: Cross multiply
    1,108,428.56x = 1,662,642.84 × 266,980.31
  4. Step 4: Simplify right side
    1,108,428.56x = 443,892,906,000.26
  5. Step 5: Solve for x
    x = 443,892,906,000.26/1,108,428.56
  6. Step 6: Final answer
    x = 400,470.47

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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.