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Finding the Fourth Proportional to 628,968.54, 867,950.52 and 342,487.94

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Solution

The fourth proportional to 628,968.54, 867,950.52 and 342,487.94 is: 472,619.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,968.54 : 867,950.52 = 342,487.94 : x
  2. Step 2: Convert to fraction form
    628,968.54/867,950.52 = 342,487.94/x
  3. Step 3: Cross multiply
    628,968.54x = 867,950.52 × 342,487.94
  4. Step 4: Simplify right side
    628,968.54x = 297,262,585,616.73
  5. Step 5: Solve for x
    x = 297,262,585,616.73/628,968.54
  6. Step 6: Final answer
    x = 472,619.16

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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.