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Finding the Fourth Proportional to 423,769.40, 584,636.96 and 239,965.77

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Solution

The fourth proportional to 423,769.40, 584,636.96 and 239,965.77 is: 331,059.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,769.40 : 584,636.96 = 239,965.77 : x
  2. Step 2: Convert to fraction form
    423,769.40/584,636.96 = 239,965.77/x
  3. Step 3: Cross multiply
    423,769.40x = 584,636.96 × 239,965.77
  4. Step 4: Simplify right side
    423,769.40x = 140,292,857,077.03
  5. Step 5: Solve for x
    x = 140,292,857,077.03/423,769.40
  6. Step 6: Final answer
    x = 331,059.44

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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.