Home / 452,610.74-678,338.60-212,194.28

Finding the Fourth Proportional to 452,610.74, 678,338.60 and 212,194.28

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Solution

The fourth proportional to 452,610.74, 678,338.60 and 212,194.28 is: 318,020.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,610.74 : 678,338.60 = 212,194.28 : x
  2. Step 2: Convert to fraction form
    452,610.74/678,338.60 = 212,194.28/x
  3. Step 3: Cross multiply
    452,610.74x = 678,338.60 × 212,194.28
  4. Step 4: Simplify right side
    452,610.74x = 143,939,572,651.68
  5. Step 5: Solve for x
    x = 143,939,572,651.68/452,610.74
  6. Step 6: Final answer
    x = 318,020.68

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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.