Home / 1,271,311.12-1,753,907.72-818,864.72

Finding the Fourth Proportional to 1,271,311.12, 1,753,907.72 and 818,864.72

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Solution

The fourth proportional to 1,271,311.12, 1,753,907.72 and 818,864.72 is: 1,129,710.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,311.12 : 1,753,907.72 = 818,864.72 : x
  2. Step 2: Convert to fraction form
    1,271,311.12/1,753,907.72 = 818,864.72/x
  3. Step 3: Cross multiply
    1,271,311.12x = 1,753,907.72 × 818,864.72
  4. Step 4: Simplify right side
    1,271,311.12x = 1,436,213,154,043.64
  5. Step 5: Solve for x
    x = 1,436,213,154,043.64/1,271,311.12
  6. Step 6: Final answer
    x = 1,129,710.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.