Home / 1,262,809.64-1,894,230.87-421,361.39

Finding the Fourth Proportional to 1,262,809.64, 1,894,230.87 and 421,361.39

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Solution

The fourth proportional to 1,262,809.64, 1,894,230.87 and 421,361.39 is: 632,047.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,809.64 : 1,894,230.87 = 421,361.39 : x
  2. Step 2: Convert to fraction form
    1,262,809.64/1,894,230.87 = 421,361.39/x
  3. Step 3: Cross multiply
    1,262,809.64x = 1,894,230.87 × 421,361.39
  4. Step 4: Simplify right side
    1,262,809.64x = 798,155,740,786.15
  5. Step 5: Solve for x
    x = 798,155,740,786.15/1,262,809.64
  6. Step 6: Final answer
    x = 632,047.55

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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.