Home / 907,821-1,361,337.60-308,621.16

Finding the Fourth Proportional to 907,821, 1,361,337.60 and 308,621.16

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Solution

The fourth proportional to 907,821, 1,361,337.60 and 308,621.16 is: 462,797.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,821 : 1,361,337.60 = 308,621.16 : x
  2. Step 2: Convert to fraction form
    907,821/1,361,337.60 = 308,621.16/x
  3. Step 3: Cross multiply
    907,821x = 1,361,337.60 × 308,621.16
  4. Step 4: Simplify right side
    907,821x = 420,137,589,263.62
  5. Step 5: Solve for x
    x = 420,137,589,263.62/907,821
  6. Step 6: Final answer
    x = 462,797.83

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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.