Home / 1,008,072.60-1,512,108.90-688,738.20

Finding the Fourth Proportional to 1,008,072.60, 1,512,108.90 and 688,738.20

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Solution

The fourth proportional to 1,008,072.60, 1,512,108.90 and 688,738.20 is: 1,033,107.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,072.60 : 1,512,108.90 = 688,738.20 : x
  2. Step 2: Convert to fraction form
    1,008,072.60/1,512,108.90 = 688,738.20/x
  3. Step 3: Cross multiply
    1,008,072.60x = 1,512,108.90 × 688,738.20
  4. Step 4: Simplify right side
    1,008,072.60x = 1,041,447,161,989.98
  5. Step 5: Solve for x
    x = 1,041,447,161,989.98/1,008,072.60
  6. Step 6: Final answer
    x = 1,033,107.30

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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.