Home / 680,625.48-1,021,569.47-343,902.60

Finding the Fourth Proportional to 680,625.48, 1,021,569.47 and 343,902.60

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Solution

The fourth proportional to 680,625.48, 1,021,569.47 and 343,902.60 is: 516,172.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,625.48 : 1,021,569.47 = 343,902.60 : x
  2. Step 2: Convert to fraction form
    680,625.48/1,021,569.47 = 343,902.60/x
  3. Step 3: Cross multiply
    680,625.48x = 1,021,569.47 × 343,902.60
  4. Step 4: Simplify right side
    680,625.48x = 351,320,395,094.11
  5. Step 5: Solve for x
    x = 351,320,395,094.11/680,625.48
  6. Step 6: Final answer
    x = 516,172.85

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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.