Home / 1,221,439.62-1,831,300.94-538,002.12

Finding the Fourth Proportional to 1,221,439.62, 1,831,300.94 and 538,002.12

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Solution

The fourth proportional to 1,221,439.62, 1,831,300.94 and 538,002.12 is: 806,625.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,439.62 : 1,831,300.94 = 538,002.12 : x
  2. Step 2: Convert to fraction form
    1,221,439.62/1,831,300.94 = 538,002.12/x
  3. Step 3: Cross multiply
    1,221,439.62x = 1,831,300.94 × 538,002.12
  4. Step 4: Simplify right side
    1,221,439.62x = 985,243,788,077.99
  5. Step 5: Solve for x
    x = 985,243,788,077.99/1,221,439.62
  6. Step 6: Final answer
    x = 806,625.04

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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.