Home / 803,408.65-1,108,684.26-449,785.15

Finding the Fourth Proportional to 803,408.65, 1,108,684.26 and 449,785.15

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Solution

The fourth proportional to 803,408.65, 1,108,684.26 and 449,785.15 is: 620,692.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,408.65 : 1,108,684.26 = 449,785.15 : x
  2. Step 2: Convert to fraction form
    803,408.65/1,108,684.26 = 449,785.15/x
  3. Step 3: Cross multiply
    803,408.65x = 1,108,684.26 × 449,785.15
  4. Step 4: Simplify right side
    803,408.65x = 498,669,716,186.74
  5. Step 5: Solve for x
    x = 498,669,716,186.74/803,408.65
  6. Step 6: Final answer
    x = 620,692.49

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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.