Home / 1,320,932.60-1,980,086.70-609,720.20

Finding the Fourth Proportional to 1,320,932.60, 1,980,086.70 and 609,720.20

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Solution

The fourth proportional to 1,320,932.60, 1,980,086.70 and 609,720.20 is: 913,974.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,932.60 : 1,980,086.70 = 609,720.20 : x
  2. Step 2: Convert to fraction form
    1,320,932.60/1,980,086.70 = 609,720.20/x
  3. Step 3: Cross multiply
    1,320,932.60x = 1,980,086.70 × 609,720.20
  4. Step 4: Simplify right side
    1,320,932.60x = 1,207,298,858,741.34
  5. Step 5: Solve for x
    x = 1,207,298,858,741.34/1,320,932.60
  6. Step 6: Final answer
    x = 913,974.61

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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.