Home / 1,326,316.80-1,989,546.24-379,825.92

Finding the Fourth Proportional to 1,326,316.80, 1,989,546.24 and 379,825.92

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Solution

The fourth proportional to 1,326,316.80, 1,989,546.24 and 379,825.92 is: 569,759.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,316.80 : 1,989,546.24 = 379,825.92 : x
  2. Step 2: Convert to fraction form
    1,326,316.80/1,989,546.24 = 379,825.92/x
  3. Step 3: Cross multiply
    1,326,316.80x = 1,989,546.24 × 379,825.92
  4. Step 4: Simplify right side
    1,326,316.80x = 755,681,230,990.54
  5. Step 5: Solve for x
    x = 755,681,230,990.54/1,326,316.80
  6. Step 6: Final answer
    x = 569,759.22

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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.