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Finding the Fourth Proportional to 630,956.80, 946,585.86 and 210,236.32

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Solution

The fourth proportional to 630,956.80, 946,585.86 and 210,236.32 is: 315,404.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,956.80 : 946,585.86 = 210,236.32 : x
  2. Step 2: Convert to fraction form
    630,956.80/946,585.86 = 210,236.32/x
  3. Step 3: Cross multiply
    630,956.80x = 946,585.86 × 210,236.32
  4. Step 4: Simplify right side
    630,956.80x = 199,006,727,770.44
  5. Step 5: Solve for x
    x = 199,006,727,770.44/630,956.80
  6. Step 6: Final answer
    x = 315,404.68

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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.