Home / 803,300.49-1,204,990.80-263,508.78

Finding the Fourth Proportional to 803,300.49, 1,204,990.80 and 263,508.78

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Solution

The fourth proportional to 803,300.49, 1,204,990.80 and 263,508.78 is: 395,276.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,300.49 : 1,204,990.80 = 263,508.78 : x
  2. Step 2: Convert to fraction form
    803,300.49/1,204,990.80 = 263,508.78/x
  3. Step 3: Cross multiply
    803,300.49x = 1,204,990.80 × 263,508.78
  4. Step 4: Simplify right side
    803,300.49x = 317,525,655,619.22
  5. Step 5: Solve for x
    x = 317,525,655,619.22/803,300.49
  6. Step 6: Final answer
    x = 395,276.31

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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.