Home / 683,860.80-1,026,633.60-431,140.80

Finding the Fourth Proportional to 683,860.80, 1,026,633.60 and 431,140.80

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Solution

The fourth proportional to 683,860.80, 1,026,633.60 and 431,140.80 is: 647,242.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,860.80 : 1,026,633.60 = 431,140.80 : x
  2. Step 2: Convert to fraction form
    683,860.80/1,026,633.60 = 431,140.80/x
  3. Step 3: Cross multiply
    683,860.80x = 1,026,633.60 × 431,140.80
  4. Step 4: Simplify right side
    683,860.80x = 442,623,631,610.88
  5. Step 5: Solve for x
    x = 442,623,631,610.88/683,860.80
  6. Step 6: Final answer
    x = 647,242.29

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1.5x scale

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.