Home / 668,860.05-1,003,394.43-219,478.63

Finding the Fourth Proportional to 668,860.05, 1,003,394.43 and 219,478.63

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Solution

The fourth proportional to 668,860.05, 1,003,394.43 and 219,478.63 is: 329,252.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,860.05 : 1,003,394.43 = 219,478.63 : x
  2. Step 2: Convert to fraction form
    668,860.05/1,003,394.43 = 219,478.63/x
  3. Step 3: Cross multiply
    668,860.05x = 1,003,394.43 × 219,478.63
  4. Step 4: Simplify right side
    668,860.05x = 220,223,634,846.03
  5. Step 5: Solve for x
    x = 220,223,634,846.03/668,860.05
  6. Step 6: Final answer
    x = 329,252.19

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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.