Home / 678,206.41-1,017,004.80-487,869.06

Finding the Fourth Proportional to 678,206.41, 1,017,004.80 and 487,869.06

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Solution

The fourth proportional to 678,206.41, 1,017,004.80 and 487,869.06 is: 731,584.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,206.41 : 1,017,004.80 = 487,869.06 : x
  2. Step 2: Convert to fraction form
    678,206.41/1,017,004.80 = 487,869.06/x
  3. Step 3: Cross multiply
    678,206.41x = 1,017,004.80 × 487,869.06
  4. Step 4: Simplify right side
    678,206.41x = 496,165,175,791.49
  5. Step 5: Solve for x
    x = 496,165,175,791.49/678,206.41
  6. Step 6: Final answer
    x = 731,584.32

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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.