Home / 678,205.41-1,017,003.30-487,868.06

Finding the Fourth Proportional to 678,205.41, 1,017,003.30 and 487,868.06

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Solution

The fourth proportional to 678,205.41, 1,017,003.30 and 487,868.06 is: 731,582.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,205.41 : 1,017,003.30 = 487,868.06 : x
  2. Step 2: Convert to fraction form
    678,205.41/1,017,003.30 = 487,868.06/x
  3. Step 3: Cross multiply
    678,205.41x = 1,017,003.30 × 487,868.06
  4. Step 4: Simplify right side
    678,205.41x = 496,163,427,697.60
  5. Step 5: Solve for x
    x = 496,163,427,697.60/678,205.41
  6. Step 6: Final answer
    x = 731,582.83

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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.