Home / 778,921.20-1,168,819.20-329,565.60

Finding the Fourth Proportional to 778,921.20, 1,168,819.20 and 329,565.60

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Solution

The fourth proportional to 778,921.20, 1,168,819.20 and 329,565.60 is: 494,533.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,921.20 : 1,168,819.20 = 329,565.60 : x
  2. Step 2: Convert to fraction form
    778,921.20/1,168,819.20 = 329,565.60/x
  3. Step 3: Cross multiply
    778,921.20x = 1,168,819.20 × 329,565.60
  4. Step 4: Simplify right side
    778,921.20x = 385,202,600,939.52
  5. Step 5: Solve for x
    x = 385,202,600,939.52/778,921.20
  6. Step 6: Final answer
    x = 494,533.47

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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.