Home / 1,186,819.38-1,780,203.96-288,265.32

Finding the Fourth Proportional to 1,186,819.38, 1,780,203.96 and 288,265.32

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Solution

The fourth proportional to 1,186,819.38, 1,780,203.96 and 288,265.32 is: 432,391.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,819.38 : 1,780,203.96 = 288,265.32 : x
  2. Step 2: Convert to fraction form
    1,186,819.38/1,780,203.96 = 288,265.32/x
  3. Step 3: Cross multiply
    1,186,819.38x = 1,780,203.96 × 288,265.32
  4. Step 4: Simplify right side
    1,186,819.38x = 513,171,064,194.67
  5. Step 5: Solve for x
    x = 513,171,064,194.67/1,186,819.38
  6. Step 6: Final answer
    x = 432,391.88

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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.