Home / 778,873.20-1,168,115.40-298,996.80

Finding the Fourth Proportional to 778,873.20, 1,168,115.40 and 298,996.80

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Solution

The fourth proportional to 778,873.20, 1,168,115.40 and 298,996.80 is: 448,420.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,873.20 : 1,168,115.40 = 298,996.80 : x
  2. Step 2: Convert to fraction form
    778,873.20/1,168,115.40 = 298,996.80/x
  3. Step 3: Cross multiply
    778,873.20x = 1,168,115.40 × 298,996.80
  4. Step 4: Simplify right side
    778,873.20x = 349,262,766,630.72
  5. Step 5: Solve for x
    x = 349,262,766,630.72/778,873.20
  6. Step 6: Final answer
    x = 448,420.57

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Double scale
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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.