Home / 1,124,481.90-1,687,500.45-809,165.10

Finding the Fourth Proportional to 1,124,481.90, 1,687,500.45 and 809,165.10

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Solution

The fourth proportional to 1,124,481.90, 1,687,500.45 and 809,165.10 is: 1,214,307.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,481.90 : 1,687,500.45 = 809,165.10 : x
  2. Step 2: Convert to fraction form
    1,124,481.90/1,687,500.45 = 809,165.10/x
  3. Step 3: Cross multiply
    1,124,481.90x = 1,687,500.45 × 809,165.10
  4. Step 4: Simplify right side
    1,124,481.90x = 1,365,466,470,374.30
  5. Step 5: Solve for x
    x = 1,365,466,470,374.30/1,124,481.90
  6. Step 6: Final answer
    x = 1,214,307.20

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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.