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Finding the Fourth Proportional to 630,908.46, 945,575.10 and 315,455.58

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Solution

The fourth proportional to 630,908.46, 945,575.10 and 315,455.58 is: 472,789.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,908.46 : 945,575.10 = 315,455.58 : x
  2. Step 2: Convert to fraction form
    630,908.46/945,575.10 = 315,455.58/x
  3. Step 3: Cross multiply
    630,908.46x = 945,575.10 × 315,455.58
  4. Step 4: Simplify right side
    630,908.46x = 298,286,941,604.06
  5. Step 5: Solve for x
    x = 298,286,941,604.06/630,908.46
  6. Step 6: Final answer
    x = 472,789.57

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1.5x scale

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.