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Finding the Fourth Proportional to 452,813.80, 677,607.90 and 394,292.20

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Solution

The fourth proportional to 452,813.80, 677,607.90 and 394,292.20 is: 590,033.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,813.80 : 677,607.90 = 394,292.20 : x
  2. Step 2: Convert to fraction form
    452,813.80/677,607.90 = 394,292.20/x
  3. Step 3: Cross multiply
    452,813.80x = 677,607.90 × 394,292.20
  4. Step 4: Simplify right side
    452,813.80x = 267,175,509,628.38
  5. Step 5: Solve for x
    x = 267,175,509,628.38/452,813.80
  6. Step 6: Final answer
    x = 590,033.94

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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.