Home / 992,720.70-1,489,081.05-393,824.70

Finding the Fourth Proportional to 992,720.70, 1,489,081.05 and 393,824.70

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Solution

The fourth proportional to 992,720.70, 1,489,081.05 and 393,824.70 is: 590,737.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,720.70 : 1,489,081.05 = 393,824.70 : x
  2. Step 2: Convert to fraction form
    992,720.70/1,489,081.05 = 393,824.70/x
  3. Step 3: Cross multiply
    992,720.70x = 1,489,081.05 × 393,824.70
  4. Step 4: Simplify right side
    992,720.70x = 586,436,897,791.94
  5. Step 5: Solve for x
    x = 586,436,897,791.94/992,720.70
  6. Step 6: Final answer
    x = 590,737.05

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1.5x scale

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.