Home / 668,005.56-1,002,352.86-313,055.64

Finding the Fourth Proportional to 668,005.56, 1,002,352.86 and 313,055.64

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Solution

The fourth proportional to 668,005.56, 1,002,352.86 and 313,055.64 is: 469,744.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,005.56 : 1,002,352.86 = 313,055.64 : x
  2. Step 2: Convert to fraction form
    668,005.56/1,002,352.86 = 313,055.64/x
  3. Step 3: Cross multiply
    668,005.56x = 1,002,352.86 × 313,055.64
  4. Step 4: Simplify right side
    668,005.56x = 313,792,216,093.13
  5. Step 5: Solve for x
    x = 313,792,216,093.13/668,005.56
  6. Step 6: Final answer
    x = 469,744.92

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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.