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Finding the Fourth Proportional to 484,546.68, 726,762.78 and 129,588.21

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Solution

The fourth proportional to 484,546.68, 726,762.78 and 129,588.21 is: 194,367.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,546.68 : 726,762.78 = 129,588.21 : x
  2. Step 2: Convert to fraction form
    484,546.68/726,762.78 = 129,588.21/x
  3. Step 3: Cross multiply
    484,546.68x = 726,762.78 × 129,588.21
  4. Step 4: Simplify right side
    484,546.68x = 94,179,887,754.82
  5. Step 5: Solve for x
    x = 94,179,887,754.82/484,546.68
  6. Step 6: Final answer
    x = 194,367.01

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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.