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Finding the Fourth Proportional to 662,683.70, 994,025.55 and 213,403.70

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Solution

The fourth proportional to 662,683.70, 994,025.55 and 213,403.70 is: 320,105.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,683.70 : 994,025.55 = 213,403.70 : x
  2. Step 2: Convert to fraction form
    662,683.70/994,025.55 = 213,403.70/x
  3. Step 3: Cross multiply
    662,683.70x = 994,025.55 × 213,403.70
  4. Step 4: Simplify right side
    662,683.70x = 212,128,730,264.54
  5. Step 5: Solve for x
    x = 212,128,730,264.54/662,683.70
  6. Step 6: Final answer
    x = 320,105.55

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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.