Home / 680,338.24-1,021,137.93-343,615.36

Finding the Fourth Proportional to 680,338.24, 1,021,137.93 and 343,615.36

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Solution

The fourth proportional to 680,338.24, 1,021,137.93 and 343,615.36 is: 515,741.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,338.24 : 1,021,137.93 = 343,615.36 : x
  2. Step 2: Convert to fraction form
    680,338.24/1,021,137.93 = 343,615.36/x
  3. Step 3: Cross multiply
    680,338.24x = 1,021,137.93 × 343,615.36
  4. Step 4: Simplify right side
    680,338.24x = 350,878,670,602.84
  5. Step 5: Solve for x
    x = 350,878,670,602.84/680,338.24
  6. Step 6: Final answer
    x = 515,741.51

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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.