Home / 727,473.59-1,003,991.86-400,819.44

Finding the Fourth Proportional to 727,473.59, 1,003,991.86 and 400,819.44

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Solution

The fourth proportional to 727,473.59, 1,003,991.86 and 400,819.44 is: 553,173.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,473.59 : 1,003,991.86 = 400,819.44 : x
  2. Step 2: Convert to fraction form
    727,473.59/1,003,991.86 = 400,819.44/x
  3. Step 3: Cross multiply
    727,473.59x = 1,003,991.86 × 400,819.44
  4. Step 4: Simplify right side
    727,473.59x = 402,419,455,590.78
  5. Step 5: Solve for x
    x = 402,419,455,590.78/727,473.59
  6. Step 6: Final answer
    x = 553,173.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.