Home / 828,141.63-1,242,212.59-259,522.54

Finding the Fourth Proportional to 828,141.63, 1,242,212.59 and 259,522.54

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Solution

The fourth proportional to 828,141.63, 1,242,212.59 and 259,522.54 is: 389,283.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,141.63 : 1,242,212.59 = 259,522.54 : x
  2. Step 2: Convert to fraction form
    828,141.63/1,242,212.59 = 259,522.54/x
  3. Step 3: Cross multiply
    828,141.63x = 1,242,212.59 × 259,522.54
  4. Step 4: Simplify right side
    828,141.63x = 322,382,163,795.65
  5. Step 5: Solve for x
    x = 322,382,163,795.65/828,141.63
  6. Step 6: Final answer
    x = 389,283.85

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Double scale
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Similar ratio
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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.