Home / 1,318,855.55-1,819,981.55-730,181.21

Finding the Fourth Proportional to 1,318,855.55, 1,819,981.55 and 730,181.21

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Solution

The fourth proportional to 1,318,855.55, 1,819,981.55 and 730,181.21 is: 1,007,628.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,855.55 : 1,819,981.55 = 730,181.21 : x
  2. Step 2: Convert to fraction form
    1,318,855.55/1,819,981.55 = 730,181.21/x
  3. Step 3: Cross multiply
    1,318,855.55x = 1,819,981.55 × 730,181.21
  4. Step 4: Simplify right side
    1,318,855.55x = 1,328,916,336,052.70
  5. Step 5: Solve for x
    x = 1,328,916,336,052.70/1,318,855.55
  6. Step 6: Final answer
    x = 1,007,628.42

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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.