Home / 678,205.91-1,017,004.05-487,868.57

Finding the Fourth Proportional to 678,205.91, 1,017,004.05 and 487,868.57

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Solution

The fourth proportional to 678,205.91, 1,017,004.05 and 487,868.57 is: 731,583.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,205.91 : 1,017,004.05 = 487,868.57 : x
  2. Step 2: Convert to fraction form
    678,205.91/1,017,004.05 = 487,868.57/x
  3. Step 3: Cross multiply
    678,205.91x = 1,017,004.05 × 487,868.57
  4. Step 4: Simplify right side
    678,205.91x = 496,164,304,033.35
  5. Step 5: Solve for x
    x = 496,164,304,033.35/678,205.91
  6. Step 6: Final answer
    x = 731,583.58

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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.