Home / 1,555,361.32-2,146,289.34-857,611.12

Finding the Fourth Proportional to 1,555,361.32, 2,146,289.34 and 857,611.12

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Solution

The fourth proportional to 1,555,361.32, 2,146,289.34 and 857,611.12 is: 1,183,443.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,361.32 : 2,146,289.34 = 857,611.12 : x
  2. Step 2: Convert to fraction form
    1,555,361.32/2,146,289.34 = 857,611.12/x
  3. Step 3: Cross multiply
    1,555,361.32x = 2,146,289.34 × 857,611.12
  4. Step 4: Simplify right side
    1,555,361.32x = 1,840,681,604,721.46
  5. Step 5: Solve for x
    x = 1,840,681,604,721.46/1,555,361.32
  6. Step 6: Final answer
    x = 1,183,443.09

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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.