Home / 778,429.44-1,166,626.80-399,028.68

Finding the Fourth Proportional to 778,429.44, 1,166,626.80 and 399,028.68

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Solution

The fourth proportional to 778,429.44, 1,166,626.80 and 399,028.68 is: 598,021.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,429.44 : 1,166,626.80 = 399,028.68 : x
  2. Step 2: Convert to fraction form
    778,429.44/1,166,626.80 = 399,028.68/x
  3. Step 3: Cross multiply
    778,429.44x = 1,166,626.80 × 399,028.68
  4. Step 4: Simplify right side
    778,429.44x = 465,517,552,056.62
  5. Step 5: Solve for x
    x = 465,517,552,056.62/778,429.44
  6. Step 6: Final answer
    x = 598,021.51

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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.