Home / 811,351.74-1,217,013.82-242,734.16

Finding the Fourth Proportional to 811,351.74, 1,217,013.82 and 242,734.16

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Solution

The fourth proportional to 811,351.74, 1,217,013.82 and 242,734.16 is: 364,097.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,351.74 : 1,217,013.82 = 242,734.16 : x
  2. Step 2: Convert to fraction form
    811,351.74/1,217,013.82 = 242,734.16/x
  3. Step 3: Cross multiply
    811,351.74x = 1,217,013.82 × 242,734.16
  4. Step 4: Simplify right side
    811,351.74x = 295,410,827,306.09
  5. Step 5: Solve for x
    x = 295,410,827,306.09/811,351.74
  6. Step 6: Final answer
    x = 364,097.11

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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.