Home / 718,647.04-1,078,025.46-419,157.64

Finding the Fourth Proportional to 718,647.04, 1,078,025.46 and 419,157.64

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Solution

The fourth proportional to 718,647.04, 1,078,025.46 and 419,157.64 is: 628,768.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,647.04 : 1,078,025.46 = 419,157.64 : x
  2. Step 2: Convert to fraction form
    718,647.04/1,078,025.46 = 419,157.64/x
  3. Step 3: Cross multiply
    718,647.04x = 1,078,025.46 × 419,157.64
  4. Step 4: Simplify right side
    718,647.04x = 451,862,607,673.51
  5. Step 5: Solve for x
    x = 451,862,607,673.51/718,647.04
  6. Step 6: Final answer
    x = 628,768.48

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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.