Home / 1,286,310.60-1,928,842.74-387,584.82

Finding the Fourth Proportional to 1,286,310.60, 1,928,842.74 and 387,584.82

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Solution

The fourth proportional to 1,286,310.60, 1,928,842.74 and 387,584.82 is: 581,189.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,310.60 : 1,928,842.74 = 387,584.82 : x
  2. Step 2: Convert to fraction form
    1,286,310.60/1,928,842.74 = 387,584.82/x
  3. Step 3: Cross multiply
    1,286,310.60x = 1,928,842.74 × 387,584.82
  4. Step 4: Simplify right side
    1,286,310.60x = 747,590,166,191.21
  5. Step 5: Solve for x
    x = 747,590,166,191.21/1,286,310.60
  6. Step 6: Final answer
    x = 581,189.46

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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.