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Finding the Fourth Proportional to 966,654.20, 1,450,499.70 and 405,745.40

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Solution

The fourth proportional to 966,654.20, 1,450,499.70 and 405,745.40 is: 608,835.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    966,654.20 : 1,450,499.70 = 405,745.40 : x
  2. Step 2: Convert to fraction form
    966,654.20/1,450,499.70 = 405,745.40/x
  3. Step 3: Cross multiply
    966,654.20x = 1,450,499.70 × 405,745.40
  4. Step 4: Simplify right side
    966,654.20x = 588,533,580,976.38
  5. Step 5: Solve for x
    x = 588,533,580,976.38/966,654.20
  6. Step 6: Final answer
    x = 608,835.69

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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.