Home / 731,624.70-1,099,769.85-689,634.30

Finding the Fourth Proportional to 731,624.70, 1,099,769.85 and 689,634.30

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Solution

The fourth proportional to 731,624.70, 1,099,769.85 and 689,634.30 is: 1,036,650.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,624.70 : 1,099,769.85 = 689,634.30 : x
  2. Step 2: Convert to fraction form
    731,624.70/1,099,769.85 = 689,634.30/x
  3. Step 3: Cross multiply
    731,624.70x = 1,099,769.85 × 689,634.30
  4. Step 4: Simplify right side
    731,624.70x = 758,439,010,665.86
  5. Step 5: Solve for x
    x = 758,439,010,665.86/731,624.70
  6. Step 6: Final answer
    x = 1,036,650.36

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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.