Home / 1,367,989.46-2,052,204.69-421,359.74

Finding the Fourth Proportional to 1,367,989.46, 2,052,204.69 and 421,359.74

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Solution

The fourth proportional to 1,367,989.46, 2,052,204.69 and 421,359.74 is: 632,107.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,367,989.46 : 2,052,204.69 = 421,359.74 : x
  2. Step 2: Convert to fraction form
    1,367,989.46/2,052,204.69 = 421,359.74/x
  3. Step 3: Cross multiply
    1,367,989.46x = 2,052,204.69 × 421,359.74
  4. Step 4: Simplify right side
    1,367,989.46x = 864,716,434,605.18
  5. Step 5: Solve for x
    x = 864,716,434,605.18/1,367,989.46
  6. Step 6: Final answer
    x = 632,107.53

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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.