Home / 890,239.82-1,228,956.71-508,192.79

Finding the Fourth Proportional to 890,239.82, 1,228,956.71 and 508,192.79

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Solution

The fourth proportional to 890,239.82, 1,228,956.71 and 508,192.79 is: 701,549.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,239.82 : 1,228,956.71 = 508,192.79 : x
  2. Step 2: Convert to fraction form
    890,239.82/1,228,956.71 = 508,192.79/x
  3. Step 3: Cross multiply
    890,239.82x = 1,228,956.71 × 508,192.79
  4. Step 4: Simplify right side
    890,239.82x = 624,546,930,558.37
  5. Step 5: Solve for x
    x = 624,546,930,558.37/890,239.82
  6. Step 6: Final answer
    x = 701,549.09

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Double scale
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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.