Home / 458,321.04-687,518.46-174,147.78

Finding the Fourth Proportional to 458,321.04, 687,518.46 and 174,147.78

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Solution

The fourth proportional to 458,321.04, 687,518.46 and 174,147.78 is: 261,235.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,321.04 : 687,518.46 = 174,147.78 : x
  2. Step 2: Convert to fraction form
    458,321.04/687,518.46 = 174,147.78/x
  3. Step 3: Cross multiply
    458,321.04x = 687,518.46 × 174,147.78
  4. Step 4: Simplify right side
    458,321.04x = 119,729,813,518.02
  5. Step 5: Solve for x
    x = 119,729,813,518.02/458,321.04
  6. Step 6: Final answer
    x = 261,235.69

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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.