Home / 1,309,403.28-1,964,584.70-551,435.57

Finding the Fourth Proportional to 1,309,403.28, 1,964,584.70 and 551,435.57

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Solution

The fourth proportional to 1,309,403.28, 1,964,584.70 and 551,435.57 is: 827,355.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,403.28 : 1,964,584.70 = 551,435.57 : x
  2. Step 2: Convert to fraction form
    1,309,403.28/1,964,584.70 = 551,435.57/x
  3. Step 3: Cross multiply
    1,309,403.28x = 1,964,584.70 × 551,435.57
  4. Step 4: Simplify right side
    1,309,403.28x = 1,083,341,883,857.78
  5. Step 5: Solve for x
    x = 1,083,341,883,857.78/1,309,403.28
  6. Step 6: Final answer
    x = 827,355.41

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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.