Home / 878,168.93-1,211,857.38-496,187.51

Finding the Fourth Proportional to 878,168.93, 1,211,857.38 and 496,187.51

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Solution

The fourth proportional to 878,168.93, 1,211,857.38 and 496,187.51 is: 684,729.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,168.93 : 1,211,857.38 = 496,187.51 : x
  2. Step 2: Convert to fraction form
    878,168.93/1,211,857.38 = 496,187.51/x
  3. Step 3: Cross multiply
    878,168.93x = 1,211,857.38 × 496,187.51
  4. Step 4: Simplify right side
    878,168.93x = 601,308,489,798.04
  5. Step 5: Solve for x
    x = 601,308,489,798.04/878,168.93
  6. Step 6: Final answer
    x = 684,729.87

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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.