Home / 680,232.24-1,020,742.64-343,299.24

Finding the Fourth Proportional to 680,232.24, 1,020,742.64 and 343,299.24

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Solution

The fourth proportional to 680,232.24, 1,020,742.64 and 343,299.24 is: 515,147.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,232.24 : 1,020,742.64 = 343,299.24 : x
  2. Step 2: Convert to fraction form
    680,232.24/1,020,742.64 = 343,299.24/x
  3. Step 3: Cross multiply
    680,232.24x = 1,020,742.64 × 343,299.24
  4. Step 4: Simplify right side
    680,232.24x = 350,420,172,547.59
  5. Step 5: Solve for x
    x = 350,420,172,547.59/680,232.24
  6. Step 6: Final answer
    x = 515,147.85

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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.