Home / 803,403.66-1,108,677.38-449,780.14

Finding the Fourth Proportional to 803,403.66, 1,108,677.38 and 449,780.14

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Solution

The fourth proportional to 803,403.66, 1,108,677.38 and 449,780.14 is: 620,685.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,403.66 : 1,108,677.38 = 449,780.14 : x
  2. Step 2: Convert to fraction form
    803,403.66/1,108,677.38 = 449,780.14/x
  3. Step 3: Cross multiply
    803,403.66x = 1,108,677.38 × 449,780.14
  4. Step 4: Simplify right side
    803,403.66x = 498,661,067,191.23
  5. Step 5: Solve for x
    x = 498,661,067,191.23/803,403.66
  6. Step 6: Final answer
    x = 620,685.58

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1.5x scale

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.