Home / 1,091,788.68-1,638,190.28-417,647.15

Finding the Fourth Proportional to 1,091,788.68, 1,638,190.28 and 417,647.15

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Solution

The fourth proportional to 1,091,788.68, 1,638,190.28 and 417,647.15 is: 626,664.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,788.68 : 1,638,190.28 = 417,647.15 : x
  2. Step 2: Convert to fraction form
    1,091,788.68/1,638,190.28 = 417,647.15/x
  3. Step 3: Cross multiply
    1,091,788.68x = 1,638,190.28 × 417,647.15
  4. Step 4: Simplify right side
    1,091,788.68x = 684,185,494,452.87
  5. Step 5: Solve for x
    x = 684,185,494,452.87/1,091,788.68
  6. Step 6: Final answer
    x = 626,664.76

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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.