Home / 989,988.54-1,366,183.82-537,279.54

Finding the Fourth Proportional to 989,988.54, 1,366,183.82 and 537,279.54

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Solution

The fourth proportional to 989,988.54, 1,366,183.82 and 537,279.54 is: 741,445.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,988.54 : 1,366,183.82 = 537,279.54 : x
  2. Step 2: Convert to fraction form
    989,988.54/1,366,183.82 = 537,279.54/x
  3. Step 3: Cross multiply
    989,988.54x = 1,366,183.82 × 537,279.54
  4. Step 4: Simplify right side
    989,988.54x = 734,022,614,365.04
  5. Step 5: Solve for x
    x = 734,022,614,365.04/989,988.54
  6. Step 6: Final answer
    x = 741,445.57

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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.