Home / 672,743.60-1,009,119.48-199,433.36

Finding the Fourth Proportional to 672,743.60, 1,009,119.48 and 199,433.36

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Solution

The fourth proportional to 672,743.60, 1,009,119.48 and 199,433.36 is: 299,151.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,743.60 : 1,009,119.48 = 199,433.36 : x
  2. Step 2: Convert to fraction form
    672,743.60/1,009,119.48 = 199,433.36/x
  3. Step 3: Cross multiply
    672,743.60x = 1,009,119.48 × 199,433.36
  4. Step 4: Simplify right side
    672,743.60x = 201,252,088,537.85
  5. Step 5: Solve for x
    x = 201,252,088,537.85/672,743.60
  6. Step 6: Final answer
    x = 299,151.25

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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.