Home / 670,389.20-1,005,608.10-197,122.40

Finding the Fourth Proportional to 670,389.20, 1,005,608.10 and 197,122.40

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Solution

The fourth proportional to 670,389.20, 1,005,608.10 and 197,122.40 is: 295,690.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,389.20 : 1,005,608.10 = 197,122.40 : x
  2. Step 2: Convert to fraction form
    670,389.20/1,005,608.10 = 197,122.40/x
  3. Step 3: Cross multiply
    670,389.20x = 1,005,608.10 × 197,122.40
  4. Step 4: Simplify right side
    670,389.20x = 198,227,882,131.44
  5. Step 5: Solve for x
    x = 198,227,882,131.44/670,389.20
  6. Step 6: Final answer
    x = 295,690.75

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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.