Home / 992,459.20-1,489,077.60-393,318.40

Finding the Fourth Proportional to 992,459.20, 1,489,077.60 and 393,318.40

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Solution

The fourth proportional to 992,459.20, 1,489,077.60 and 393,318.40 is: 590,131.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,459.20 : 1,489,077.60 = 393,318.40 : x
  2. Step 2: Convert to fraction form
    992,459.20/1,489,077.60 = 393,318.40/x
  3. Step 3: Cross multiply
    992,459.20x = 1,489,077.60 × 393,318.40
  4. Step 4: Simplify right side
    992,459.20x = 585,681,619,107.84
  5. Step 5: Solve for x
    x = 585,681,619,107.84/992,459.20
  6. Step 6: Final answer
    x = 590,131.68

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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.