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Finding the Fourth Proportional to 617,144.13, 851,737.68 and 345,227.13

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Solution

The fourth proportional to 617,144.13, 851,737.68 and 345,227.13 is: 476,457.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,144.13 : 851,737.68 = 345,227.13 : x
  2. Step 2: Convert to fraction form
    617,144.13/851,737.68 = 345,227.13/x
  3. Step 3: Cross multiply
    617,144.13x = 851,737.68 × 345,227.13
  4. Step 4: Simplify right side
    617,144.13x = 294,042,954,779.26
  5. Step 5: Solve for x
    x = 294,042,954,779.26/617,144.13
  6. Step 6: Final answer
    x = 476,457.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.