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Finding the Fourth Proportional to 3,207,718.22, 4,811,583.53 and 778,861.23

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Solution

The fourth proportional to 3,207,718.22, 4,811,583.53 and 778,861.23 is: 1,168,293.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,207,718.22 : 4,811,583.53 = 778,861.23 : x
  2. Step 2: Convert to fraction form
    3,207,718.22/4,811,583.53 = 778,861.23/x
  3. Step 3: Cross multiply
    3,207,718.22x = 4,811,583.53 × 778,861.23
  4. Step 4: Simplify right side
    3,207,718.22x = 3,747,555,862,529.24
  5. Step 5: Solve for x
    x = 3,747,555,862,529.24/3,207,718.22
  6. Step 6: Final answer
    x = 1,168,293.35

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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.