Home / 678,319.85-1,017,469.23-229,356.02

Finding the Fourth Proportional to 678,319.85, 1,017,469.23 and 229,356.02

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Solution

The fourth proportional to 678,319.85, 1,017,469.23 and 229,356.02 is: 344,030.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,319.85 : 1,017,469.23 = 229,356.02 : x
  2. Step 2: Convert to fraction form
    678,319.85/1,017,469.23 = 229,356.02/x
  3. Step 3: Cross multiply
    678,319.85x = 1,017,469.23 × 229,356.02
  4. Step 4: Simplify right side
    678,319.85x = 233,362,687,977.92
  5. Step 5: Solve for x
    x = 233,362,687,977.92/678,319.85
  6. Step 6: Final answer
    x = 344,030.46

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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.