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Finding the Fourth Proportional to 633,000.65, 873,540.81 and 342,612.16

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Solution

The fourth proportional to 633,000.65, 873,540.81 and 342,612.16 is: 472,804.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,000.65 : 873,540.81 = 342,612.16 : x
  2. Step 2: Convert to fraction form
    633,000.65/873,540.81 = 342,612.16/x
  3. Step 3: Cross multiply
    633,000.65x = 873,540.81 × 342,612.16
  4. Step 4: Simplify right side
    633,000.65x = 299,285,699,394.55
  5. Step 5: Solve for x
    x = 299,285,699,394.55/633,000.65
  6. Step 6: Final answer
    x = 472,804.73

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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.