Home / 1,455,292.28-2,178,907.86-743,788.28

Finding the Fourth Proportional to 1,455,292.28, 2,178,907.86 and 743,788.28

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Solution

The fourth proportional to 1,455,292.28, 2,178,907.86 and 743,788.28 is: 1,113,622.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,292.28 : 2,178,907.86 = 743,788.28 : x
  2. Step 2: Convert to fraction form
    1,455,292.28/2,178,907.86 = 743,788.28/x
  3. Step 3: Cross multiply
    1,455,292.28x = 2,178,907.86 × 743,788.28
  4. Step 4: Simplify right side
    1,455,292.28x = 1,620,646,129,467.88
  5. Step 5: Solve for x
    x = 1,620,646,129,467.88/1,455,292.28
  6. Step 6: Final answer
    x = 1,113,622.43

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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.