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Finding the Fourth Proportional to 662,730.40, 994,095.60 and 189,431.20

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Solution

The fourth proportional to 662,730.40, 994,095.60 and 189,431.20 is: 284,146.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,730.40 : 994,095.60 = 189,431.20 : x
  2. Step 2: Convert to fraction form
    662,730.40/994,095.60 = 189,431.20/x
  3. Step 3: Cross multiply
    662,730.40x = 994,095.60 × 189,431.20
  4. Step 4: Simplify right side
    662,730.40x = 188,312,722,422.72
  5. Step 5: Solve for x
    x = 188,312,722,422.72/662,730.40
  6. Step 6: Final answer
    x = 284,146.80

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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.