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Finding the Fourth Proportional to 484,344.09, 726,516.18 and 129,339.36

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Solution

The fourth proportional to 484,344.09, 726,516.18 and 129,339.36 is: 194,009.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,344.09 : 726,516.18 = 129,339.36 : x
  2. Step 2: Convert to fraction form
    484,344.09/726,516.18 = 129,339.36/x
  3. Step 3: Cross multiply
    484,344.09x = 726,516.18 × 129,339.36
  4. Step 4: Simplify right side
    484,344.09x = 93,967,137,750.84
  5. Step 5: Solve for x
    x = 93,967,137,750.84/484,344.09
  6. Step 6: Final answer
    x = 194,009.05

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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.