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Finding the Fourth Proportional to 479,775.88, 661,851.59 and 286,046.98

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Solution

The fourth proportional to 479,775.88, 661,851.59 and 286,046.98 is: 394,602.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,775.88 : 661,851.59 = 286,046.98 : x
  2. Step 2: Convert to fraction form
    479,775.88/661,851.59 = 286,046.98/x
  3. Step 3: Cross multiply
    479,775.88x = 661,851.59 × 286,046.98
  4. Step 4: Simplify right side
    479,775.88x = 189,320,645,442.83
  5. Step 5: Solve for x
    x = 189,320,645,442.83/479,775.88
  6. Step 6: Final answer
    x = 394,602.26

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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.