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Finding the Fourth Proportional to 662,893.80, 994,340.70 and 477,652.20

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Solution

The fourth proportional to 662,893.80, 994,340.70 and 477,652.20 is: 716,478.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,893.80 : 994,340.70 = 477,652.20 : x
  2. Step 2: Convert to fraction form
    662,893.80/994,340.70 = 477,652.20/x
  3. Step 3: Cross multiply
    662,893.80x = 994,340.70 × 477,652.20
  4. Step 4: Simplify right side
    662,893.80x = 474,949,022,904.54
  5. Step 5: Solve for x
    x = 474,949,022,904.54/662,893.80
  6. Step 6: Final answer
    x = 716,478.30

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Double scale
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Similar ratio
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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.