Home / 992,828.40-1,489,317.48-309,629.04

Finding the Fourth Proportional to 992,828.40, 1,489,317.48 and 309,629.04

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Solution

The fourth proportional to 992,828.40, 1,489,317.48 and 309,629.04 is: 464,466.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,828.40 : 1,489,317.48 = 309,629.04 : x
  2. Step 2: Convert to fraction form
    992,828.40/1,489,317.48 = 309,629.04/x
  3. Step 3: Cross multiply
    992,828.40x = 1,489,317.48 × 309,629.04
  4. Step 4: Simplify right side
    992,828.40x = 461,135,941,587.62
  5. Step 5: Solve for x
    x = 461,135,941,587.62/992,828.40
  6. Step 6: Final answer
    x = 464,466.91

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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.