Home / 869,149.40-1,303,724.10-820,160.60

Finding the Fourth Proportional to 869,149.40, 1,303,724.10 and 820,160.60

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Solution

The fourth proportional to 869,149.40, 1,303,724.10 and 820,160.60 is: 1,230,240.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,149.40 : 1,303,724.10 = 820,160.60 : x
  2. Step 2: Convert to fraction form
    869,149.40/1,303,724.10 = 820,160.60/x
  3. Step 3: Cross multiply
    869,149.40x = 1,303,724.10 × 820,160.60
  4. Step 4: Simplify right side
    869,149.40x = 1,069,263,140,090.46
  5. Step 5: Solve for x
    x = 1,069,263,140,090.46/869,149.40
  6. Step 6: Final answer
    x = 1,230,240.90

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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.