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Finding the Fourth Proportional to 500,351.29, 750,719.31 and 300,809.41

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Solution

The fourth proportional to 500,351.29, 750,719.31 and 300,809.41 is: 451,329.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,351.29 : 750,719.31 = 300,809.41 : x
  2. Step 2: Convert to fraction form
    500,351.29/750,719.31 = 300,809.41/x
  3. Step 3: Cross multiply
    500,351.29x = 750,719.31 × 300,809.41
  4. Step 4: Simplify right side
    500,351.29x = 225,823,432,716.71
  5. Step 5: Solve for x
    x = 225,823,432,716.71/500,351.29
  6. Step 6: Final answer
    x = 451,329.77

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1.5x scale

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.