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Finding the Fourth Proportional to 476,963.65, 658,066.31 and 285,907.33

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Solution

The fourth proportional to 476,963.65, 658,066.31 and 285,907.33 is: 394,466.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,963.65 : 658,066.31 = 285,907.33 : x
  2. Step 2: Convert to fraction form
    476,963.65/658,066.31 = 285,907.33/x
  3. Step 3: Cross multiply
    476,963.65x = 658,066.31 × 285,907.33
  4. Step 4: Simplify right side
    476,963.65x = 188,145,980,225.52
  5. Step 5: Solve for x
    x = 188,145,980,225.52/476,963.65
  6. Step 6: Final answer
    x = 394,466.08

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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.