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Finding the Fourth Proportional to 802,081.09, 1,203,621 and 727,336.72

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Solution

The fourth proportional to 802,081.09, 1,203,621 and 727,336.72 is: 1,091,457.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,081.09 : 1,203,621 = 727,336.72 : x
  2. Step 2: Convert to fraction form
    802,081.09/1,203,621 = 727,336.72/x
  3. Step 3: Cross multiply
    802,081.09x = 1,203,621 × 727,336.72
  4. Step 4: Simplify right side
    802,081.09x = 875,437,750,263.12
  5. Step 5: Solve for x
    x = 875,437,750,263.12/802,081.09
  6. Step 6: Final answer
    x = 1,091,457.91

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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.