Home / 578,292.98-867,273-199,198.40

Finding the Fourth Proportional to 578,292.98, 867,273 and 199,198.40

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Solution

The fourth proportional to 578,292.98, 867,273 and 199,198.40 is: 298,740.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,292.98 : 867,273 = 199,198.40 : x
  2. Step 2: Convert to fraction form
    578,292.98/867,273 = 199,198.40/x
  3. Step 3: Cross multiply
    578,292.98x = 867,273 × 199,198.40
  4. Step 4: Simplify right side
    578,292.98x = 172,759,389,626.84
  5. Step 5: Solve for x
    x = 172,759,389,626.84/578,292.98
  6. Step 6: Final answer
    x = 298,740.25

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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.