Home / 411,740.57-617,660.67-145,446.59

Finding the Fourth Proportional to 411,740.57, 617,660.67 and 145,446.59

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Solution

The fourth proportional to 411,740.57, 617,660.67 and 145,446.59 is: 218,187.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,740.57 : 617,660.67 = 145,446.59 : x
  2. Step 2: Convert to fraction form
    411,740.57/617,660.67 = 145,446.59/x
  3. Step 3: Cross multiply
    411,740.57x = 617,660.67 × 145,446.59
  4. Step 4: Simplify right side
    411,740.57x = 89,836,638,228.62
  5. Step 5: Solve for x
    x = 89,836,638,228.62/411,740.57
  6. Step 6: Final answer
    x = 218,187.48

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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.