Home / 1,428,322.49-2,143,084.73-889,029.82

Finding the Fourth Proportional to 1,428,322.49, 2,143,084.73 and 889,029.82

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Solution

The fourth proportional to 1,428,322.49, 2,143,084.73 and 889,029.82 is: 1,333,918.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,322.49 : 2,143,084.73 = 889,029.82 : x
  2. Step 2: Convert to fraction form
    1,428,322.49/2,143,084.73 = 889,029.82/x
  3. Step 3: Cross multiply
    1,428,322.49x = 2,143,084.73 × 889,029.82
  4. Step 4: Simplify right side
    1,428,322.49x = 1,905,266,221,041.23
  5. Step 5: Solve for x
    x = 1,905,266,221,041.23/1,428,322.49
  6. Step 6: Final answer
    x = 1,333,918.80

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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.