Home / 693,483.63-1,040,328.83-213,671.28

Finding the Fourth Proportional to 693,483.63, 1,040,328.83 and 213,671.28

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Solution

The fourth proportional to 693,483.63, 1,040,328.83 and 213,671.28 is: 320,538.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,483.63 : 1,040,328.83 = 213,671.28 : x
  2. Step 2: Convert to fraction form
    693,483.63/1,040,328.83 = 213,671.28/x
  3. Step 3: Cross multiply
    693,483.63x = 1,040,328.83 × 213,671.28
  4. Step 4: Simplify right side
    693,483.63x = 222,288,397,162.41
  5. Step 5: Solve for x
    x = 222,288,397,162.41/693,483.63
  6. Step 6: Final answer
    x = 320,538.78

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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.