Home / 407,328.13-610,811.77-217,742.57

Finding the Fourth Proportional to 407,328.13, 610,811.77 and 217,742.57

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Solution

The fourth proportional to 407,328.13, 610,811.77 and 217,742.57 is: 326,517.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,328.13 : 610,811.77 = 217,742.57 : x
  2. Step 2: Convert to fraction form
    407,328.13/610,811.77 = 217,742.57/x
  3. Step 3: Cross multiply
    407,328.13x = 610,811.77 × 217,742.57
  4. Step 4: Simplify right side
    407,328.13x = 132,999,724,586.05
  5. Step 5: Solve for x
    x = 132,999,724,586.05/407,328.13
  6. Step 6: Final answer
    x = 326,517.41

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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.