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Finding the Fourth Proportional to 522,079.60, 783,119.40 and 242,143.60

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Solution

The fourth proportional to 522,079.60, 783,119.40 and 242,143.60 is: 363,215.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,079.60 : 783,119.40 = 242,143.60 : x
  2. Step 2: Convert to fraction form
    522,079.60/783,119.40 = 242,143.60/x
  3. Step 3: Cross multiply
    522,079.60x = 783,119.40 × 242,143.60
  4. Step 4: Simplify right side
    522,079.60x = 189,627,350,745.84
  5. Step 5: Solve for x
    x = 189,627,350,745.84/522,079.60
  6. Step 6: Final answer
    x = 363,215.40

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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.