Home / 513,982.80-770,974.20-134,902.80

Finding the Fourth Proportional to 513,982.80, 770,974.20 and 134,902.80

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Solution

The fourth proportional to 513,982.80, 770,974.20 and 134,902.80 is: 202,354.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,982.80 : 770,974.20 = 134,902.80 : x
  2. Step 2: Convert to fraction form
    513,982.80/770,974.20 = 134,902.80/x
  3. Step 3: Cross multiply
    513,982.80x = 770,974.20 × 134,902.80
  4. Step 4: Simplify right side
    513,982.80x = 104,006,578,307.76
  5. Step 5: Solve for x
    x = 104,006,578,307.76/513,982.80
  6. Step 6: Final answer
    x = 202,354.20

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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.