Home / 568,221.29-784,164.21-310,112.36

Finding the Fourth Proportional to 568,221.29, 784,164.21 and 310,112.36

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Solution

The fourth proportional to 568,221.29, 784,164.21 and 310,112.36 is: 427,965.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,221.29 : 784,164.21 = 310,112.36 : x
  2. Step 2: Convert to fraction form
    568,221.29/784,164.21 = 310,112.36/x
  3. Step 3: Cross multiply
    568,221.29x = 784,164.21 × 310,112.36
  4. Step 4: Simplify right side
    568,221.29x = 243,179,013,790.64
  5. Step 5: Solve for x
    x = 243,179,013,790.64/568,221.29
  6. Step 6: Final answer
    x = 427,965.33

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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.