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Finding the Fourth Proportional to 2,608,806.68, 3,913,478.15 and 902,947.19

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Solution

The fourth proportional to 2,608,806.68, 3,913,478.15 and 902,947.19 is: 1,354,513.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,608,806.68 : 3,913,478.15 = 902,947.19 : x
  2. Step 2: Convert to fraction form
    2,608,806.68/3,913,478.15 = 902,947.19/x
  3. Step 3: Cross multiply
    2,608,806.68x = 3,913,478.15 × 902,947.19
  4. Step 4: Simplify right side
    2,608,806.68x = 3,533,664,074,586.77
  5. Step 5: Solve for x
    x = 3,533,664,074,586.77/2,608,806.68
  6. Step 6: Final answer
    x = 1,354,513.58

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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.