Home / 1,377,112.80-2,065,960.80-417,489.60

Finding the Fourth Proportional to 1,377,112.80, 2,065,960.80 and 417,489.60

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Solution

The fourth proportional to 1,377,112.80, 2,065,960.80 and 417,489.60 is: 626,322.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,112.80 : 2,065,960.80 = 417,489.60 : x
  2. Step 2: Convert to fraction form
    1,377,112.80/2,065,960.80 = 417,489.60/x
  3. Step 3: Cross multiply
    1,377,112.80x = 2,065,960.80 × 417,489.60
  4. Step 4: Simplify right side
    1,377,112.80x = 862,517,148,007.68
  5. Step 5: Solve for x
    x = 862,517,148,007.68/1,377,112.80
  6. Step 6: Final answer
    x = 626,322.80

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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.