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Finding the Fourth Proportional to 522,039.60, 783,059.40 and 242,103.60

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Solution

The fourth proportional to 522,039.60, 783,059.40 and 242,103.60 is: 363,155.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,039.60 : 783,059.40 = 242,103.60 : x
  2. Step 2: Convert to fraction form
    522,039.60/783,059.40 = 242,103.60/x
  3. Step 3: Cross multiply
    522,039.60x = 783,059.40 × 242,103.60
  4. Step 4: Simplify right side
    522,039.60x = 189,581,499,753.84
  5. Step 5: Solve for x
    x = 189,581,499,753.84/522,039.60
  6. Step 6: Final answer
    x = 363,155.40

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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.