Home / 873,422.39-1,310,118.96-393,383.18

Finding the Fourth Proportional to 873,422.39, 1,310,118.96 and 393,383.18

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Solution

The fourth proportional to 873,422.39, 1,310,118.96 and 393,383.18 is: 590,068.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,422.39 : 1,310,118.96 = 393,383.18 : x
  2. Step 2: Convert to fraction form
    873,422.39/1,310,118.96 = 393,383.18/x
  3. Step 3: Cross multiply
    873,422.39x = 1,310,118.96 × 393,383.18
  4. Step 4: Simplify right side
    873,422.39x = 515,378,767,413.58
  5. Step 5: Solve for x
    x = 515,378,767,413.58/873,422.39
  6. Step 6: Final answer
    x = 590,068.19

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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.