Home / 783,902.20-1,175,561.70-310,489.60

Finding the Fourth Proportional to 783,902.20, 1,175,561.70 and 310,489.60

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Solution

The fourth proportional to 783,902.20, 1,175,561.70 and 310,489.60 is: 465,618.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,902.20 : 1,175,561.70 = 310,489.60 : x
  2. Step 2: Convert to fraction form
    783,902.20/1,175,561.70 = 310,489.60/x
  3. Step 3: Cross multiply
    783,902.20x = 1,175,561.70 × 310,489.60
  4. Step 4: Simplify right side
    783,902.20x = 364,999,682,008.32
  5. Step 5: Solve for x
    x = 364,999,682,008.32/783,902.20
  6. Step 6: Final answer
    x = 465,618.90

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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.