Home / 890,905.80-1,335,768.30-491,737.80

Finding the Fourth Proportional to 890,905.80, 1,335,768.30 and 491,737.80

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Solution

The fourth proportional to 890,905.80, 1,335,768.30 and 491,737.80 is: 737,280.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,905.80 : 1,335,768.30 = 491,737.80 : x
  2. Step 2: Convert to fraction form
    890,905.80/1,335,768.30 = 491,737.80/x
  3. Step 3: Cross multiply
    890,905.80x = 1,335,768.30 × 491,737.80
  4. Step 4: Simplify right side
    890,905.80x = 656,847,765,151.74
  5. Step 5: Solve for x
    x = 656,847,765,151.74/890,905.80
  6. Step 6: Final answer
    x = 737,280.83

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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.