Home / 831,394.28-1,247,091.42-298,624.67

Finding the Fourth Proportional to 831,394.28, 1,247,091.42 and 298,624.67

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Solution

The fourth proportional to 831,394.28, 1,247,091.42 and 298,624.67 is: 447,937.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,394.28 : 1,247,091.42 = 298,624.67 : x
  2. Step 2: Convert to fraction form
    831,394.28/1,247,091.42 = 298,624.67/x
  3. Step 3: Cross multiply
    831,394.28x = 1,247,091.42 × 298,624.67
  4. Step 4: Simplify right side
    831,394.28x = 372,412,267,813.55
  5. Step 5: Solve for x
    x = 372,412,267,813.55/831,394.28
  6. Step 6: Final answer
    x = 447,937.01

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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.