Home / 679,975.80-1,019,963.70-612,324.60

Finding the Fourth Proportional to 679,975.80, 1,019,963.70 and 612,324.60

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Solution

The fourth proportional to 679,975.80, 1,019,963.70 and 612,324.60 is: 918,486.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,975.80 : 1,019,963.70 = 612,324.60 : x
  2. Step 2: Convert to fraction form
    679,975.80/1,019,963.70 = 612,324.60/x
  3. Step 3: Cross multiply
    679,975.80x = 1,019,963.70 × 612,324.60
  4. Step 4: Simplify right side
    679,975.80x = 624,548,864,617.02
  5. Step 5: Solve for x
    x = 624,548,864,617.02/679,975.80
  6. Step 6: Final answer
    x = 918,486.90

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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.