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Finding the Fourth Proportional to 621,652.72, 931,244.44 and 479,003.04

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Solution

The fourth proportional to 621,652.72, 931,244.44 and 479,003.04 is: 717,553.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,652.72 : 931,244.44 = 479,003.04 : x
  2. Step 2: Convert to fraction form
    621,652.72/931,244.44 = 479,003.04/x
  3. Step 3: Cross multiply
    621,652.72x = 931,244.44 × 479,003.04
  4. Step 4: Simplify right side
    621,652.72x = 446,068,917,743.10
  5. Step 5: Solve for x
    x = 446,068,917,743.10/621,652.72
  6. Step 6: Final answer
    x = 717,553.23

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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.