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Finding the Fourth Proportional to 609,900.60, 915,369.30 and 491,705.40

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Solution

The fourth proportional to 609,900.60, 915,369.30 and 491,705.40 is: 737,976.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,900.60 : 915,369.30 = 491,705.40 : x
  2. Step 2: Convert to fraction form
    609,900.60/915,369.30 = 491,705.40/x
  3. Step 3: Cross multiply
    609,900.60x = 915,369.30 × 491,705.40
  4. Step 4: Simplify right side
    609,900.60x = 450,092,027,804.22
  5. Step 5: Solve for x
    x = 450,092,027,804.22/609,900.60
  6. Step 6: Final answer
    x = 737,976.04

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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.