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Finding the Fourth Proportional to 835,264.80, 1,252,022.40 and 329,630.40

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Solution

The fourth proportional to 835,264.80, 1,252,022.40 and 329,630.40 is: 494,100.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,264.80 : 1,252,022.40 = 329,630.40 : x
  2. Step 2: Convert to fraction form
    835,264.80/1,252,022.40 = 329,630.40/x
  3. Step 3: Cross multiply
    835,264.80x = 1,252,022.40 × 329,630.40
  4. Step 4: Simplify right side
    835,264.80x = 412,704,644,520.96
  5. Step 5: Solve for x
    x = 412,704,644,520.96/835,264.80
  6. Step 6: Final answer
    x = 494,100.37

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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.