Home / 919,695.64-1,379,601.78-288,634.36

Finding the Fourth Proportional to 919,695.64, 1,379,601.78 and 288,634.36

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Solution

The fourth proportional to 919,695.64, 1,379,601.78 and 288,634.36 is: 432,969.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,695.64 : 1,379,601.78 = 288,634.36 : x
  2. Step 2: Convert to fraction form
    919,695.64/1,379,601.78 = 288,634.36/x
  3. Step 3: Cross multiply
    919,695.64x = 1,379,601.78 × 288,634.36
  4. Step 4: Simplify right side
    919,695.64x = 398,200,476,825.16
  5. Step 5: Solve for x
    x = 398,200,476,825.16/919,695.64
  6. Step 6: Final answer
    x = 432,969.84

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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.