Home / 1,212,892.40-1,819,338.60-413,981.30

Finding the Fourth Proportional to 1,212,892.40, 1,819,338.60 and 413,981.30

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Solution

The fourth proportional to 1,212,892.40, 1,819,338.60 and 413,981.30 is: 620,971.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,892.40 : 1,819,338.60 = 413,981.30 : x
  2. Step 2: Convert to fraction form
    1,212,892.40/1,819,338.60 = 413,981.30/x
  3. Step 3: Cross multiply
    1,212,892.40x = 1,819,338.60 × 413,981.30
  4. Step 4: Simplify right side
    1,212,892.40x = 753,172,158,768.18
  5. Step 5: Solve for x
    x = 753,172,158,768.18/1,212,892.40
  6. Step 6: Final answer
    x = 620,971.95

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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.