Home / 811,901.34-1,218,031.41-243,259.26

Finding the Fourth Proportional to 811,901.34, 1,218,031.41 and 243,259.26

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Solution

The fourth proportional to 811,901.34, 1,218,031.41 and 243,259.26 is: 364,942.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,901.34 : 1,218,031.41 = 243,259.26 : x
  2. Step 2: Convert to fraction form
    811,901.34/1,218,031.41 = 243,259.26/x
  3. Step 3: Cross multiply
    811,901.34x = 1,218,031.41 × 243,259.26
  4. Step 4: Simplify right side
    811,901.34x = 296,297,419,453.36
  5. Step 5: Solve for x
    x = 296,297,419,453.36/811,901.34
  6. Step 6: Final answer
    x = 364,942.64

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.