Home / 678,342.39-1,017,535.23-341,198.88

Finding the Fourth Proportional to 678,342.39, 1,017,535.23 and 341,198.88

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Solution

The fourth proportional to 678,342.39, 1,017,535.23 and 341,198.88 is: 511,809.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,342.39 : 1,017,535.23 = 341,198.88 : x
  2. Step 2: Convert to fraction form
    678,342.39/1,017,535.23 = 341,198.88/x
  3. Step 3: Cross multiply
    678,342.39x = 1,017,535.23 × 341,198.88
  4. Step 4: Simplify right side
    678,342.39x = 347,181,880,836.54
  5. Step 5: Solve for x
    x = 347,181,880,836.54/678,342.39
  6. Step 6: Final answer
    x = 511,809.21

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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.