Home / 992,765.73-1,487,839.99-393,399.93

Finding the Fourth Proportional to 992,765.73, 1,487,839.99 and 393,399.93

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Solution

The fourth proportional to 992,765.73, 1,487,839.99 and 393,399.93 is: 589,581.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,765.73 : 1,487,839.99 = 393,399.93 : x
  2. Step 2: Convert to fraction form
    992,765.73/1,487,839.99 = 393,399.93/x
  3. Step 3: Cross multiply
    992,765.73x = 1,487,839.99 × 393,399.93
  4. Step 4: Simplify right side
    992,765.73x = 585,316,147,917.20
  5. Step 5: Solve for x
    x = 585,316,147,917.20/992,765.73
  6. Step 6: Final answer
    x = 589,581.34

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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.