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Finding the Fourth Proportional to 630,149.04, 869,596.29 and 343,668.51

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Solution

The fourth proportional to 630,149.04, 869,596.29 and 343,668.51 is: 474,257.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,149.04 : 869,596.29 = 343,668.51 : x
  2. Step 2: Convert to fraction form
    630,149.04/869,596.29 = 343,668.51/x
  3. Step 3: Cross multiply
    630,149.04x = 869,596.29 × 343,668.51
  4. Step 4: Simplify right side
    630,149.04x = 298,852,861,285.83
  5. Step 5: Solve for x
    x = 298,852,861,285.83/630,149.04
  6. Step 6: Final answer
    x = 474,257.43

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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.