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Finding the Fourth Proportional to 1,764,619.95, 2,646,874.52 and 970,890.66

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Solution

The fourth proportional to 1,764,619.95, 2,646,874.52 and 970,890.66 is: 1,456,305.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,764,619.95 : 2,646,874.52 = 970,890.66 : x
  2. Step 2: Convert to fraction form
    1,764,619.95/2,646,874.52 = 970,890.66/x
  3. Step 3: Cross multiply
    1,764,619.95x = 2,646,874.52 × 970,890.66
  4. Step 4: Simplify right side
    1,764,619.95x = 2,569,825,744,805.53
  5. Step 5: Solve for x
    x = 2,569,825,744,805.53/1,764,619.95
  6. Step 6: Final answer
    x = 1,456,305.50

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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.