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Finding the Fourth Proportional to 522,063.20, 782,511.60 and 297,531.20

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Solution

The fourth proportional to 522,063.20, 782,511.60 and 297,531.20 is: 445,964.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,063.20 : 782,511.60 = 297,531.20 : x
  2. Step 2: Convert to fraction form
    522,063.20/782,511.60 = 297,531.20/x
  3. Step 3: Cross multiply
    522,063.20x = 782,511.60 × 297,531.20
  4. Step 4: Simplify right side
    522,063.20x = 232,821,615,361.92
  5. Step 5: Solve for x
    x = 232,821,615,361.92/522,063.20
  6. Step 6: Final answer
    x = 445,964.43

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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.