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Finding the Fourth Proportional to 662,683.20, 994,024.80 and 213,403.20

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Solution

The fourth proportional to 662,683.20, 994,024.80 and 213,403.20 is: 320,104.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,683.20 : 994,024.80 = 213,403.20 : x
  2. Step 2: Convert to fraction form
    662,683.20/994,024.80 = 213,403.20/x
  3. Step 3: Cross multiply
    662,683.20x = 994,024.80 × 213,403.20
  4. Step 4: Simplify right side
    662,683.20x = 212,128,073,199.36
  5. Step 5: Solve for x
    x = 212,128,073,199.36/662,683.20
  6. Step 6: Final answer
    x = 320,104.80

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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.