Home / 660,028.37-990,034.20-210,743.55

Finding the Fourth Proportional to 660,028.37, 990,034.20 and 210,743.55

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Solution

The fourth proportional to 660,028.37, 990,034.20 and 210,743.55 is: 316,112.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,028.37 : 990,034.20 = 210,743.55 : x
  2. Step 2: Convert to fraction form
    660,028.37/990,034.20 = 210,743.55/x
  3. Step 3: Cross multiply
    660,028.37x = 990,034.20 × 210,743.55
  4. Step 4: Simplify right side
    660,028.37x = 208,643,321,929.41
  5. Step 5: Solve for x
    x = 208,643,321,929.41/660,028.37
  6. Step 6: Final answer
    x = 316,112.66

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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.