Home / 1,317,288.42-1,975,937.40-320,016.42

Finding the Fourth Proportional to 1,317,288.42, 1,975,937.40 and 320,016.42

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Solution

The fourth proportional to 1,317,288.42, 1,975,937.40 and 320,016.42 is: 480,025.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,288.42 : 1,975,937.40 = 320,016.42 : x
  2. Step 2: Convert to fraction form
    1,317,288.42/1,975,937.40 = 320,016.42/x
  3. Step 3: Cross multiply
    1,317,288.42x = 1,975,937.40 × 320,016.42
  4. Step 4: Simplify right side
    1,317,288.42x = 632,332,412,892.11
  5. Step 5: Solve for x
    x = 632,332,412,892.11/1,317,288.42
  6. Step 6: Final answer
    x = 480,025.79

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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.