Home / 919,233.76-1,378,851.05-288,196.78

Finding the Fourth Proportional to 919,233.76, 1,378,851.05 and 288,196.78

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Solution

The fourth proportional to 919,233.76, 1,378,851.05 and 288,196.78 is: 432,295.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,233.76 : 1,378,851.05 = 288,196.78 : x
  2. Step 2: Convert to fraction form
    919,233.76/1,378,851.05 = 288,196.78/x
  3. Step 3: Cross multiply
    919,233.76x = 1,378,851.05 × 288,196.78
  4. Step 4: Simplify right side
    919,233.76x = 397,380,431,268.64
  5. Step 5: Solve for x
    x = 397,380,431,268.64/919,233.76
  6. Step 6: Final answer
    x = 432,295.30

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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.