Home / 1,137,964.21-1,707,200.55-427,998.40

Finding the Fourth Proportional to 1,137,964.21, 1,707,200.55 and 427,998.40

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Solution

The fourth proportional to 1,137,964.21, 1,707,200.55 and 427,998.40 is: 642,093.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,964.21 : 1,707,200.55 = 427,998.40 : x
  2. Step 2: Convert to fraction form
    1,137,964.21/1,707,200.55 = 427,998.40/x
  3. Step 3: Cross multiply
    1,137,964.21x = 1,707,200.55 × 427,998.40
  4. Step 4: Simplify right side
    1,137,964.21x = 730,679,099,611.12
  5. Step 5: Solve for x
    x = 730,679,099,611.12/1,137,964.21
  6. Step 6: Final answer
    x = 642,093.22

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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.