Home / 739,149.66-1,020,028.86-399,620.34

Finding the Fourth Proportional to 739,149.66, 1,020,028.86 and 399,620.34

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Solution

The fourth proportional to 739,149.66, 1,020,028.86 and 399,620.34 is: 551,477.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,149.66 : 1,020,028.86 = 399,620.34 : x
  2. Step 2: Convert to fraction form
    739,149.66/1,020,028.86 = 399,620.34/x
  3. Step 3: Cross multiply
    739,149.66x = 1,020,028.86 × 399,620.34
  4. Step 4: Simplify right side
    739,149.66x = 407,624,279,843.01
  5. Step 5: Solve for x
    x = 407,624,279,843.01/739,149.66
  6. Step 6: Final answer
    x = 551,477.33

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1.5x scale

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.