Home / 3,185,842.80-4,778,009.64-911,297.20

Finding the Fourth Proportional to 3,185,842.80, 4,778,009.64 and 911,297.20

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Solution

The fourth proportional to 3,185,842.80, 4,778,009.64 and 911,297.20 is: 1,366,729.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,185,842.80 : 4,778,009.64 = 911,297.20 : x
  2. Step 2: Convert to fraction form
    3,185,842.80/4,778,009.64 = 911,297.20/x
  3. Step 3: Cross multiply
    3,185,842.80x = 4,778,009.64 × 911,297.20
  4. Step 4: Simplify right side
    3,185,842.80x = 4,354,186,806,505.01
  5. Step 5: Solve for x
    x = 4,354,186,806,505.01/3,185,842.80
  6. Step 6: Final answer
    x = 1,366,729.96

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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.