Home / 680,525.12-1,021,418.53-343,802.81

Finding the Fourth Proportional to 680,525.12, 1,021,418.53 and 343,802.81

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Solution

The fourth proportional to 680,525.12, 1,021,418.53 and 343,802.81 is: 516,022.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,525.12 : 1,021,418.53 = 343,802.81 : x
  2. Step 2: Convert to fraction form
    680,525.12/1,021,418.53 = 343,802.81/x
  3. Step 3: Cross multiply
    680,525.12x = 1,021,418.53 × 343,802.81
  4. Step 4: Simplify right side
    680,525.12x = 351,166,558,074.64
  5. Step 5: Solve for x
    x = 351,166,558,074.64/680,525.12
  6. Step 6: Final answer
    x = 516,022.92

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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.