Home / 869,405.60-1,303,500.90-514,236.80

Finding the Fourth Proportional to 869,405.60, 1,303,500.90 and 514,236.80

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Solution

The fourth proportional to 869,405.60, 1,303,500.90 and 514,236.80 is: 770,995.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,405.60 : 1,303,500.90 = 514,236.80 : x
  2. Step 2: Convert to fraction form
    869,405.60/1,303,500.90 = 514,236.80/x
  3. Step 3: Cross multiply
    869,405.60x = 1,303,500.90 × 514,236.80
  4. Step 4: Simplify right side
    869,405.60x = 670,308,131,613.12
  5. Step 5: Solve for x
    x = 670,308,131,613.12/869,405.60
  6. Step 6: Final answer
    x = 770,995.88

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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.