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Finding the Fourth Proportional to 630,242.83, 869,735.10 and 343,762.92

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Solution

The fourth proportional to 630,242.83, 869,735.10 and 343,762.92 is: 474,392.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,242.83 : 869,735.10 = 343,762.92 : x
  2. Step 2: Convert to fraction form
    630,242.83/869,735.10 = 343,762.92/x
  3. Step 3: Cross multiply
    630,242.83x = 869,735.10 × 343,762.92
  4. Step 4: Simplify right side
    630,242.83x = 298,982,678,891.60
  5. Step 5: Solve for x
    x = 298,982,678,891.60/630,242.83
  6. Step 6: Final answer
    x = 474,392.83

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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.