Home / 679,962.80-1,019,944.20-612,311.60

Finding the Fourth Proportional to 679,962.80, 1,019,944.20 and 612,311.60

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Solution

The fourth proportional to 679,962.80, 1,019,944.20 and 612,311.60 is: 918,467.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,962.80 : 1,019,944.20 = 612,311.60 : x
  2. Step 2: Convert to fraction form
    679,962.80/1,019,944.20 = 612,311.60/x
  3. Step 3: Cross multiply
    679,962.80x = 1,019,944.20 × 612,311.60
  4. Step 4: Simplify right side
    679,962.80x = 624,523,665,012.72
  5. Step 5: Solve for x
    x = 624,523,665,012.72/679,962.80
  6. Step 6: Final answer
    x = 918,467.40

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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.