Home / 678,682.71-1,017,855.86-229,393.60

Finding the Fourth Proportional to 678,682.71, 1,017,855.86 and 229,393.60

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Solution

The fourth proportional to 678,682.71, 1,017,855.86 and 229,393.60 is: 344,033.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,682.71 : 1,017,855.86 = 229,393.60 : x
  2. Step 2: Convert to fraction form
    678,682.71/1,017,855.86 = 229,393.60/x
  3. Step 3: Cross multiply
    678,682.71x = 1,017,855.86 × 229,393.60
  4. Step 4: Simplify right side
    678,682.71x = 233,489,616,314.89
  5. Step 5: Solve for x
    x = 233,489,616,314.89/678,682.71
  6. Step 6: Final answer
    x = 344,033.54

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Double scale
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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.