Home / 1,396,538-2,094,928.48-385,661.28

Finding the Fourth Proportional to 1,396,538, 2,094,928.48 and 385,661.28

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Solution

The fourth proportional to 1,396,538, 2,094,928.48 and 385,661.28 is: 578,525.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,396,538 : 2,094,928.48 = 385,661.28 : x
  2. Step 2: Convert to fraction form
    1,396,538/2,094,928.48 = 385,661.28/x
  3. Step 3: Cross multiply
    1,396,538x = 2,094,928.48 × 385,661.28
  4. Step 4: Simplify right side
    1,396,538x = 807,932,799,105.25
  5. Step 5: Solve for x
    x = 807,932,799,105.25/1,396,538
  6. Step 6: Final answer
    x = 578,525.47

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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.