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Finding the Fourth Proportional to 479,775.63, 661,851.24 and 286,046.73

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Solution

The fourth proportional to 479,775.63, 661,851.24 and 286,046.73 is: 394,601.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,775.63 : 661,851.24 = 286,046.73 : x
  2. Step 2: Convert to fraction form
    479,775.63/661,851.24 = 286,046.73/x
  3. Step 3: Cross multiply
    479,775.63x = 661,851.24 × 286,046.73
  4. Step 4: Simplify right side
    479,775.63x = 189,320,382,151.82
  5. Step 5: Solve for x
    x = 189,320,382,151.82/479,775.63
  6. Step 6: Final answer
    x = 394,601.91

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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.