Home / 1,375,574.96-2,063,945.68-666,131.60

Finding the Fourth Proportional to 1,375,574.96, 2,063,945.68 and 666,131.60

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Solution

The fourth proportional to 1,375,574.96, 2,063,945.68 and 666,131.60 is: 999,479.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,574.96 : 2,063,945.68 = 666,131.60 : x
  2. Step 2: Convert to fraction form
    1,375,574.96/2,063,945.68 = 666,131.60/x
  3. Step 3: Cross multiply
    1,375,574.96x = 2,063,945.68 × 666,131.60
  4. Step 4: Simplify right side
    1,375,574.96x = 1,374,859,438,131.49
  5. Step 5: Solve for x
    x = 1,374,859,438,131.49/1,375,574.96
  6. Step 6: Final answer
    x = 999,479.84

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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.