Home / 1,392,728.40-1,909,448.40-1,367,534.16

Finding the Fourth Proportional to 1,392,728.40, 1,909,448.40 and 1,367,534.16

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Solution

The fourth proportional to 1,392,728.40, 1,909,448.40 and 1,367,534.16 is: 1,874,906.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,728.40 : 1,909,448.40 = 1,367,534.16 : x
  2. Step 2: Convert to fraction form
    1,392,728.40/1,909,448.40 = 1,367,534.16/x
  3. Step 3: Cross multiply
    1,392,728.40x = 1,909,448.40 × 1,367,534.16
  4. Step 4: Simplify right side
    1,392,728.40x = 2,611,235,913,757.34
  5. Step 5: Solve for x
    x = 2,611,235,913,757.34/1,392,728.40
  6. Step 6: Final answer
    x = 1,874,906.78

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.