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Finding the Fourth Proportional to 2,158,502, 3,237,909.96 and 828,806

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Solution

The fourth proportional to 2,158,502, 3,237,909.96 and 828,806 is: 1,243,269.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,158,502 : 3,237,909.96 = 828,806 : x
  2. Step 2: Convert to fraction form
    2,158,502/3,237,909.96 = 828,806/x
  3. Step 3: Cross multiply
    2,158,502x = 3,237,909.96 × 828,806
  4. Step 4: Simplify right side
    2,158,502x = 2,683,599,202,307.76
  5. Step 5: Solve for x
    x = 2,683,599,202,307.76/2,158,502
  6. Step 6: Final answer
    x = 1,243,269.27

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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.