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Finding the Fourth Proportional to 606,862.44, 836,996.79 and 389,091.93

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Solution

The fourth proportional to 606,862.44, 836,996.79 and 389,091.93 is: 536,643.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,862.44 : 836,996.79 = 389,091.93 : x
  2. Step 2: Convert to fraction form
    606,862.44/836,996.79 = 389,091.93/x
  3. Step 3: Cross multiply
    606,862.44x = 836,996.79 × 389,091.93
  4. Step 4: Simplify right side
    606,862.44x = 325,668,696,424.91
  5. Step 5: Solve for x
    x = 325,668,696,424.91/606,862.44
  6. Step 6: Final answer
    x = 536,643.36

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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.