Home / 724,274.76-999,469.56-401,998.44

Finding the Fourth Proportional to 724,274.76, 999,469.56 and 401,998.44

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Solution

The fourth proportional to 724,274.76, 999,469.56 and 401,998.44 is: 554,741.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,274.76 : 999,469.56 = 401,998.44 : x
  2. Step 2: Convert to fraction form
    724,274.76/999,469.56 = 401,998.44/x
  3. Step 3: Cross multiply
    724,274.76x = 999,469.56 × 401,998.44
  4. Step 4: Simplify right side
    724,274.76x = 401,785,203,947.49
  5. Step 5: Solve for x
    x = 401,785,203,947.49/724,274.76
  6. Step 6: Final answer
    x = 554,741.41

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Half scale
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Double scale
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Similar ratio
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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.