Home / 992,918.80-1,489,993.80-519,943.60

Finding the Fourth Proportional to 992,918.80, 1,489,993.80 and 519,943.60

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Solution

The fourth proportional to 992,918.80, 1,489,993.80 and 519,943.60 is: 780,237.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,918.80 : 1,489,993.80 = 519,943.60 : x
  2. Step 2: Convert to fraction form
    992,918.80/1,489,993.80 = 519,943.60/x
  3. Step 3: Cross multiply
    992,918.80x = 1,489,993.80 × 519,943.60
  4. Step 4: Simplify right side
    992,918.80x = 774,712,740,349.68
  5. Step 5: Solve for x
    x = 774,712,740,349.68/992,918.80
  6. Step 6: Final answer
    x = 780,237.76

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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.