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Finding the Fourth Proportional to 522,231.20, 783,419.70 and 222,709.40

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Solution

The fourth proportional to 522,231.20, 783,419.70 and 222,709.40 is: 334,095.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,231.20 : 783,419.70 = 222,709.40 : x
  2. Step 2: Convert to fraction form
    522,231.20/783,419.70 = 222,709.40/x
  3. Step 3: Cross multiply
    522,231.20x = 783,419.70 × 222,709.40
  4. Step 4: Simplify right side
    522,231.20x = 174,474,931,335.18
  5. Step 5: Solve for x
    x = 174,474,931,335.18/522,231.20
  6. Step 6: Final answer
    x = 334,095.19

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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.