Home / 679,940.40-1,019,910.60-675,793.20

Finding the Fourth Proportional to 679,940.40, 1,019,910.60 and 675,793.20

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Solution

The fourth proportional to 679,940.40, 1,019,910.60 and 675,793.20 is: 1,013,689.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,940.40 : 1,019,910.60 = 675,793.20 : x
  2. Step 2: Convert to fraction form
    679,940.40/1,019,910.60 = 675,793.20/x
  3. Step 3: Cross multiply
    679,940.40x = 1,019,910.60 × 675,793.20
  4. Step 4: Simplify right side
    679,940.40x = 689,248,648,087.92
  5. Step 5: Solve for x
    x = 689,248,648,087.92/679,940.40
  6. Step 6: Final answer
    x = 1,013,689.80

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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.