Home / 672,868.40-1,008,405.92-317,976.64

Finding the Fourth Proportional to 672,868.40, 1,008,405.92 and 317,976.64

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Solution

The fourth proportional to 672,868.40, 1,008,405.92 and 317,976.64 is: 476,541.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,868.40 : 1,008,405.92 = 317,976.64 : x
  2. Step 2: Convert to fraction form
    672,868.40/1,008,405.92 = 317,976.64/x
  3. Step 3: Cross multiply
    672,868.40x = 1,008,405.92 × 317,976.64
  4. Step 4: Simplify right side
    672,868.40x = 320,649,526,197.71
  5. Step 5: Solve for x
    x = 320,649,526,197.71/672,868.40
  6. Step 6: Final answer
    x = 476,541.22

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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.