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Finding the Fourth Proportional to 442,893.60, 664,340.40 and 307,080.90

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Solution

The fourth proportional to 442,893.60, 664,340.40 and 307,080.90 is: 460,621.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,893.60 : 664,340.40 = 307,080.90 : x
  2. Step 2: Convert to fraction form
    442,893.60/664,340.40 = 307,080.90/x
  3. Step 3: Cross multiply
    442,893.60x = 664,340.40 × 307,080.90
  4. Step 4: Simplify right side
    442,893.60x = 204,006,247,938.36
  5. Step 5: Solve for x
    x = 204,006,247,938.36/442,893.60
  6. Step 6: Final answer
    x = 460,621.35

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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.