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Finding the Fourth Proportional to 354,329.70, 531,494.55 and 349,080.90

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Solution

The fourth proportional to 354,329.70, 531,494.55 and 349,080.90 is: 523,621.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,329.70 : 531,494.55 = 349,080.90 : x
  2. Step 2: Convert to fraction form
    354,329.70/531,494.55 = 349,080.90/x
  3. Step 3: Cross multiply
    354,329.70x = 531,494.55 × 349,080.90
  4. Step 4: Simplify right side
    354,329.70x = 185,534,595,859.10
  5. Step 5: Solve for x
    x = 185,534,595,859.10/354,329.70
  6. Step 6: Final answer
    x = 523,621.35

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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.