Home / 492,966.78-739,450.17-118,989.78

Finding the Fourth Proportional to 492,966.78, 739,450.17 and 118,989.78

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Solution

The fourth proportional to 492,966.78, 739,450.17 and 118,989.78 is: 178,484.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,966.78 : 739,450.17 = 118,989.78 : x
  2. Step 2: Convert to fraction form
    492,966.78/739,450.17 = 118,989.78/x
  3. Step 3: Cross multiply
    492,966.78x = 739,450.17 × 118,989.78
  4. Step 4: Simplify right side
    492,966.78x = 87,987,013,049.26
  5. Step 5: Solve for x
    x = 87,987,013,049.26/492,966.78
  6. Step 6: Final answer
    x = 178,484.67

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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.