Home / 557,575.36-769,284.48-315,819.52

Finding the Fourth Proportional to 557,575.36, 769,284.48 and 315,819.52

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Solution

The fourth proportional to 557,575.36, 769,284.48 and 315,819.52 is: 435,734.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,575.36 : 769,284.48 = 315,819.52 : x
  2. Step 2: Convert to fraction form
    557,575.36/769,284.48 = 315,819.52/x
  3. Step 3: Cross multiply
    557,575.36x = 769,284.48 × 315,819.52
  4. Step 4: Simplify right side
    557,575.36x = 242,955,055,217.05
  5. Step 5: Solve for x
    x = 242,955,055,217.05/557,575.36
  6. Step 6: Final answer
    x = 435,734.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.