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Finding the Fourth Proportional to 526,518.70, 789,778.05 and 367,086.40

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Solution

The fourth proportional to 526,518.70, 789,778.05 and 367,086.40 is: 550,629.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,518.70 : 789,778.05 = 367,086.40 : x
  2. Step 2: Convert to fraction form
    526,518.70/789,778.05 = 367,086.40/x
  3. Step 3: Cross multiply
    526,518.70x = 789,778.05 × 367,086.40
  4. Step 4: Simplify right side
    526,518.70x = 289,916,781,173.52
  5. Step 5: Solve for x
    x = 289,916,781,173.52/526,518.70
  6. Step 6: Final answer
    x = 550,629.60

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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.