Home / 889,998.76-1,335,296.22-290,987.56

Finding the Fourth Proportional to 889,998.76, 1,335,296.22 and 290,987.56

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Solution

The fourth proportional to 889,998.76, 1,335,296.22 and 290,987.56 is: 436,578.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,998.76 : 1,335,296.22 = 290,987.56 : x
  2. Step 2: Convert to fraction form
    889,998.76/1,335,296.22 = 290,987.56/x
  3. Step 3: Cross multiply
    889,998.76x = 1,335,296.22 × 290,987.56
  4. Step 4: Simplify right side
    889,998.76x = 388,554,588,935.02
  5. Step 5: Solve for x
    x = 388,554,588,935.02/889,998.76
  6. Step 6: Final answer
    x = 436,578.80

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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.