Home / 1,307,975.60-1,962,028.20-678,119.60

Finding the Fourth Proportional to 1,307,975.60, 1,962,028.20 and 678,119.60

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Solution

The fourth proportional to 1,307,975.60, 1,962,028.20 and 678,119.60 is: 1,017,213.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,975.60 : 1,962,028.20 = 678,119.60 : x
  2. Step 2: Convert to fraction form
    1,307,975.60/1,962,028.20 = 678,119.60/x
  3. Step 3: Cross multiply
    1,307,975.60x = 1,962,028.20 × 678,119.60
  4. Step 4: Simplify right side
    1,307,975.60x = 1,330,489,778,172.72
  5. Step 5: Solve for x
    x = 1,330,489,778,172.72/1,307,975.60
  6. Step 6: Final answer
    x = 1,017,213.00

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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.