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Finding the Fourth Proportional to 476,479.95, 657,537.78 and 261,618.13

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Solution

The fourth proportional to 476,479.95, 657,537.78 and 261,618.13 is: 361,030.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,479.95 : 657,537.78 = 261,618.13 : x
  2. Step 2: Convert to fraction form
    476,479.95/657,537.78 = 261,618.13/x
  3. Step 3: Cross multiply
    476,479.95x = 657,537.78 × 261,618.13
  4. Step 4: Simplify right side
    476,479.95x = 172,023,804,407.95
  5. Step 5: Solve for x
    x = 172,023,804,407.95/476,479.95
  6. Step 6: Final answer
    x = 361,030.52

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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.