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Finding the Fourth Proportional to 630,950.70, 945,638.73 and 315,497.82

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Solution

The fourth proportional to 630,950.70, 945,638.73 and 315,497.82 is: 472,853.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,950.70 : 945,638.73 = 315,497.82 : x
  2. Step 2: Convert to fraction form
    630,950.70/945,638.73 = 315,497.82/x
  3. Step 3: Cross multiply
    630,950.70x = 945,638.73 × 315,497.82
  4. Step 4: Simplify right side
    630,950.70x = 298,346,957,822.57
  5. Step 5: Solve for x
    x = 298,346,957,822.57/630,950.70
  6. Step 6: Final answer
    x = 472,853.04

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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.