Home / 766,156.40-1,149,234.60-683,487.80

Finding the Fourth Proportional to 766,156.40, 1,149,234.60 and 683,487.80

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Solution

The fourth proportional to 766,156.40, 1,149,234.60 and 683,487.80 is: 1,025,231.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,156.40 : 1,149,234.60 = 683,487.80 : x
  2. Step 2: Convert to fraction form
    766,156.40/1,149,234.60 = 683,487.80/x
  3. Step 3: Cross multiply
    766,156.40x = 1,149,234.60 × 683,487.80
  4. Step 4: Simplify right side
    766,156.40x = 785,487,828,437.88
  5. Step 5: Solve for x
    x = 785,487,828,437.88/766,156.40
  6. Step 6: Final answer
    x = 1,025,231.70

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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.