Home / 668,840.31-1,003,257.79-242,276.33

Finding the Fourth Proportional to 668,840.31, 1,003,257.79 and 242,276.33

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Solution

The fourth proportional to 668,840.31, 1,003,257.79 and 242,276.33 is: 363,413.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,840.31 : 1,003,257.79 = 242,276.33 : x
  2. Step 2: Convert to fraction form
    668,840.31/1,003,257.79 = 242,276.33/x
  3. Step 3: Cross multiply
    668,840.31x = 1,003,257.79 × 242,276.33
  4. Step 4: Simplify right side
    668,840.31x = 243,065,615,405.11
  5. Step 5: Solve for x
    x = 243,065,615,405.11/668,840.31
  6. Step 6: Final answer
    x = 363,413.53

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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.