Home / 1,349,236.40-2,022,688.20-816,191.60

Finding the Fourth Proportional to 1,349,236.40, 2,022,688.20 and 816,191.60

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Solution

The fourth proportional to 1,349,236.40, 2,022,688.20 and 816,191.60 is: 1,223,581.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349,236.40 : 2,022,688.20 = 816,191.60 : x
  2. Step 2: Convert to fraction form
    1,349,236.40/2,022,688.20 = 816,191.60/x
  3. Step 3: Cross multiply
    1,349,236.40x = 2,022,688.20 × 816,191.60
  4. Step 4: Simplify right side
    1,349,236.40x = 1,650,901,118,259.12
  5. Step 5: Solve for x
    x = 1,650,901,118,259.12/1,349,236.40
  6. Step 6: Final answer
    x = 1,223,581.81

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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.