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Finding the Fourth Proportional to 617,091.08, 851,664.51 and 345,174.08

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Solution

The fourth proportional to 617,091.08, 851,664.51 and 345,174.08 is: 476,384.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,091.08 : 851,664.51 = 345,174.08 : x
  2. Step 2: Convert to fraction form
    617,091.08/851,664.51 = 345,174.08/x
  3. Step 3: Cross multiply
    617,091.08x = 851,664.51 × 345,174.08
  4. Step 4: Simplify right side
    617,091.08x = 293,972,513,707.90
  5. Step 5: Solve for x
    x = 293,972,513,707.90/617,091.08
  6. Step 6: Final answer
    x = 476,384.32

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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.