Home / 803,428.89-1,205,150.40-204,390.68

Finding the Fourth Proportional to 803,428.89, 1,205,150.40 and 204,390.68

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Solution

The fourth proportional to 803,428.89, 1,205,150.40 and 204,390.68 is: 306,587.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,428.89 : 1,205,150.40 = 204,390.68 : x
  2. Step 2: Convert to fraction form
    803,428.89/1,205,150.40 = 204,390.68/x
  3. Step 3: Cross multiply
    803,428.89x = 1,205,150.40 × 204,390.68
  4. Step 4: Simplify right side
    803,428.89x = 246,321,503,732.52
  5. Step 5: Solve for x
    x = 246,321,503,732.52/803,428.89
  6. Step 6: Final answer
    x = 306,587.81

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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.