Home / 751,874.80-1,128,071.40-331,452.40

Finding the Fourth Proportional to 751,874.80, 1,128,071.40 and 331,452.40

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Solution

The fourth proportional to 751,874.80, 1,128,071.40 and 331,452.40 is: 497,292.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,874.80 : 1,128,071.40 = 331,452.40 : x
  2. Step 2: Convert to fraction form
    751,874.80/1,128,071.40 = 331,452.40/x
  3. Step 3: Cross multiply
    751,874.80x = 1,128,071.40 × 331,452.40
  4. Step 4: Simplify right side
    751,874.80x = 373,901,972,901.36
  5. Step 5: Solve for x
    x = 373,901,972,901.36/751,874.80
  6. Step 6: Final answer
    x = 497,292.86

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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.