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Finding the Fourth Proportional to 629,891.65, 945,229.32 and 255,914.65

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Solution

The fourth proportional to 629,891.65, 945,229.32 and 255,914.65 is: 384,031.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,891.65 : 945,229.32 = 255,914.65 : x
  2. Step 2: Convert to fraction form
    629,891.65/945,229.32 = 255,914.65/x
  3. Step 3: Cross multiply
    629,891.65x = 945,229.32 × 255,914.65
  4. Step 4: Simplify right side
    629,891.65x = 241,898,031,779.08
  5. Step 5: Solve for x
    x = 241,898,031,779.08/629,891.65
  6. Step 6: Final answer
    x = 384,031.18

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Double scale
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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.