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Finding the Fourth Proportional to 627,785.60, 941,678.40 and 228,439.40

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Solution

The fourth proportional to 627,785.60, 941,678.40 and 228,439.40 is: 342,659.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,785.60 : 941,678.40 = 228,439.40 : x
  2. Step 2: Convert to fraction form
    627,785.60/941,678.40 = 228,439.40/x
  3. Step 3: Cross multiply
    627,785.60x = 941,678.40 × 228,439.40
  4. Step 4: Simplify right side
    627,785.60x = 215,116,448,688.96
  5. Step 5: Solve for x
    x = 215,116,448,688.96/627,785.60
  6. Step 6: Final answer
    x = 342,659.10

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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.