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Finding the Fourth Proportional to 662,722.40, 994,083.60 and 189,423.20

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Solution

The fourth proportional to 662,722.40, 994,083.60 and 189,423.20 is: 284,134.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,722.40 : 994,083.60 = 189,423.20 : x
  2. Step 2: Convert to fraction form
    662,722.40/994,083.60 = 189,423.20/x
  3. Step 3: Cross multiply
    662,722.40x = 994,083.60 × 189,423.20
  4. Step 4: Simplify right side
    662,722.40x = 188,302,496,579.52
  5. Step 5: Solve for x
    x = 188,302,496,579.52/662,722.40
  6. Step 6: Final answer
    x = 284,134.80

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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.