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Finding the Fourth Proportional to 1,974,811, 2,962,226.22 and 478,903

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Solution

The fourth proportional to 1,974,811, 2,962,226.22 and 478,903 is: 718,356.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,974,811 : 2,962,226.22 = 478,903 : x
  2. Step 2: Convert to fraction form
    1,974,811/2,962,226.22 = 478,903/x
  3. Step 3: Cross multiply
    1,974,811x = 2,962,226.22 × 478,903
  4. Step 4: Simplify right side
    1,974,811x = 1,418,619,023,436.66
  5. Step 5: Solve for x
    x = 1,418,619,023,436.66/1,974,811
  6. Step 6: Final answer
    x = 718,356.86

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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.