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Finding the Fourth Proportional to 585,456.21, 807,919.03 and 330,801.93

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Solution

The fourth proportional to 585,456.21, 807,919.03 and 330,801.93 is: 456,500.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,456.21 : 807,919.03 = 330,801.93 : x
  2. Step 2: Convert to fraction form
    585,456.21/807,919.03 = 330,801.93/x
  3. Step 3: Cross multiply
    585,456.21x = 807,919.03 × 330,801.93
  4. Step 4: Simplify right side
    585,456.21x = 267,261,174,407.73
  5. Step 5: Solve for x
    x = 267,261,174,407.73/585,456.21
  6. Step 6: Final answer
    x = 456,500.71

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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.