Home / 802,936.38-1,108,052.21-445,240.38

Finding the Fourth Proportional to 802,936.38, 1,108,052.21 and 445,240.38

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Solution

The fourth proportional to 802,936.38, 1,108,052.21 and 445,240.38 is: 614,431.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,936.38 : 1,108,052.21 = 445,240.38 : x
  2. Step 2: Convert to fraction form
    802,936.38/1,108,052.21 = 445,240.38/x
  3. Step 3: Cross multiply
    802,936.38x = 1,108,052.21 × 445,240.38
  4. Step 4: Simplify right side
    802,936.38x = 493,349,587,040.24
  5. Step 5: Solve for x
    x = 493,349,587,040.24/802,936.38
  6. Step 6: Final answer
    x = 614,431.73

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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.