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Finding the Fourth Proportional to 630,958.52, 945,650.45 and 315,505.64

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Solution

The fourth proportional to 630,958.52, 945,650.45 and 315,505.64 is: 472,864.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,958.52 : 945,650.45 = 315,505.64 : x
  2. Step 2: Convert to fraction form
    630,958.52/945,650.45 = 315,505.64/x
  3. Step 3: Cross multiply
    630,958.52x = 945,650.45 × 315,505.64
  4. Step 4: Simplify right side
    630,958.52x = 298,358,044,137.76
  5. Step 5: Solve for x
    x = 298,358,044,137.76/630,958.52
  6. Step 6: Final answer
    x = 472,864.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.