Home / 678,371.70-1,017,262.31-341,201.91

Finding the Fourth Proportional to 678,371.70, 1,017,262.31 and 341,201.91

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Solution

The fourth proportional to 678,371.70, 1,017,262.31 and 341,201.91 is: 511,654.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,371.70 : 1,017,262.31 = 341,201.91 : x
  2. Step 2: Convert to fraction form
    678,371.70/1,017,262.31 = 341,201.91/x
  3. Step 3: Cross multiply
    678,371.70x = 1,017,262.31 × 341,201.91
  4. Step 4: Simplify right side
    678,371.70x = 347,091,841,437.00
  5. Step 5: Solve for x
    x = 347,091,841,437.00/678,371.70
  6. Step 6: Final answer
    x = 511,654.37

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1.5x scale

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.