Home / 992,855.73-1,489,093.12-385,643.37

Finding the Fourth Proportional to 992,855.73, 1,489,093.12 and 385,643.37

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Solution

The fourth proportional to 992,855.73, 1,489,093.12 and 385,643.37 is: 578,391.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,855.73 : 1,489,093.12 = 385,643.37 : x
  2. Step 2: Convert to fraction form
    992,855.73/1,489,093.12 = 385,643.37/x
  3. Step 3: Cross multiply
    992,855.73x = 1,489,093.12 × 385,643.37
  4. Step 4: Simplify right side
    992,855.73x = 574,258,889,040.61
  5. Step 5: Solve for x
    x = 574,258,889,040.61/992,855.73
  6. Step 6: Final answer
    x = 578,391.07

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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.