Home / 1,320,061.60-1,978,780.20-608,849.20

Finding the Fourth Proportional to 1,320,061.60, 1,978,780.20 and 608,849.20

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Solution

The fourth proportional to 1,320,061.60, 1,978,780.20 and 608,849.20 is: 912,668.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,061.60 : 1,978,780.20 = 608,849.20 : x
  2. Step 2: Convert to fraction form
    1,320,061.60/1,978,780.20 = 608,849.20/x
  3. Step 3: Cross multiply
    1,320,061.60x = 1,978,780.20 × 608,849.20
  4. Step 4: Simplify right side
    1,320,061.60x = 1,204,778,741,745.84
  5. Step 5: Solve for x
    x = 1,204,778,741,745.84/1,320,061.60
  6. Step 6: Final answer
    x = 912,668.58

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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.