Home / 628,453.94-942,828.58-207,729.84

Finding the Fourth Proportional to 628,453.94, 942,828.58 and 207,729.84

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Solution

The fourth proportional to 628,453.94, 942,828.58 and 207,729.84 is: 311,643.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,453.94 : 942,828.58 = 207,729.84 : x
  2. Step 2: Convert to fraction form
    628,453.94/942,828.58 = 207,729.84/x
  3. Step 3: Cross multiply
    628,453.94x = 942,828.58 × 207,729.84
  4. Step 4: Simplify right side
    628,453.94x = 195,853,630,070.83
  5. Step 5: Solve for x
    x = 195,853,630,070.83/628,453.94
  6. Step 6: Final answer
    x = 311,643.57

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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.