Home / 679,348.20-1,019,022.30-668,850.60

Finding the Fourth Proportional to 679,348.20, 1,019,022.30 and 668,850.60

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Solution

The fourth proportional to 679,348.20, 1,019,022.30 and 668,850.60 is: 1,003,275.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,348.20 : 1,019,022.30 = 668,850.60 : x
  2. Step 2: Convert to fraction form
    679,348.20/1,019,022.30 = 668,850.60/x
  3. Step 3: Cross multiply
    679,348.20x = 1,019,022.30 × 668,850.60
  4. Step 4: Simplify right side
    679,348.20x = 681,573,676,768.38
  5. Step 5: Solve for x
    x = 681,573,676,768.38/679,348.20
  6. Step 6: Final answer
    x = 1,003,275.90

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1.5x scale

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.