Home / 683,812.80-1,026,561.60-431,092.80

Finding the Fourth Proportional to 683,812.80, 1,026,561.60 and 431,092.80

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Solution

The fourth proportional to 683,812.80, 1,026,561.60 and 431,092.80 is: 647,170.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,812.80 : 1,026,561.60 = 431,092.80 : x
  2. Step 2: Convert to fraction form
    683,812.80/1,026,561.60 = 431,092.80/x
  3. Step 3: Cross multiply
    683,812.80x = 1,026,561.60 × 431,092.80
  4. Step 4: Simplify right side
    683,812.80x = 442,543,314,516.48
  5. Step 5: Solve for x
    x = 442,543,314,516.48/683,812.80
  6. Step 6: Final answer
    x = 647,170.27

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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.