Home / 1,380,795.30-2,071,506.72-421,336.73

Finding the Fourth Proportional to 1,380,795.30, 2,071,506.72 and 421,336.73

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Solution

The fourth proportional to 1,380,795.30, 2,071,506.72 and 421,336.73 is: 632,100.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,795.30 : 2,071,506.72 = 421,336.73 : x
  2. Step 2: Convert to fraction form
    1,380,795.30/2,071,506.72 = 421,336.73/x
  3. Step 3: Cross multiply
    1,380,795.30x = 2,071,506.72 × 421,336.73
  4. Step 4: Simplify right side
    1,380,795.30x = 872,801,872,756.59
  5. Step 5: Solve for x
    x = 872,801,872,756.59/1,380,795.30
  6. Step 6: Final answer
    x = 632,100.84

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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.