Home / 987,133.73-1,362,119.31-579,086.69

Finding the Fourth Proportional to 987,133.73, 1,362,119.31 and 579,086.69

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Solution

The fourth proportional to 987,133.73, 1,362,119.31 and 579,086.69 is: 799,066.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,133.73 : 1,362,119.31 = 579,086.69 : x
  2. Step 2: Convert to fraction form
    987,133.73/1,362,119.31 = 579,086.69/x
  3. Step 3: Cross multiply
    987,133.73x = 1,362,119.31 × 579,086.69
  4. Step 4: Simplify right side
    987,133.73x = 788,785,155,802.39
  5. Step 5: Solve for x
    x = 788,785,155,802.39/987,133.73
  6. Step 6: Final answer
    x = 799,066.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.