Home / 693,017.28-1,039,672.80-219,640.32

Finding the Fourth Proportional to 693,017.28, 1,039,672.80 and 219,640.32

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Solution

The fourth proportional to 693,017.28, 1,039,672.80 and 219,640.32 is: 329,507.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,017.28 : 1,039,672.80 = 219,640.32 : x
  2. Step 2: Convert to fraction form
    693,017.28/1,039,672.80 = 219,640.32/x
  3. Step 3: Cross multiply
    693,017.28x = 1,039,672.80 × 219,640.32
  4. Step 4: Simplify right side
    693,017.28x = 228,354,066,487.30
  5. Step 5: Solve for x
    x = 228,354,066,487.30/693,017.28
  6. Step 6: Final answer
    x = 329,507.03

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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.