Home / 920,012.89-1,269,604.20-512,114.14

Finding the Fourth Proportional to 920,012.89, 1,269,604.20 and 512,114.14

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Solution

The fourth proportional to 920,012.89, 1,269,604.20 and 512,114.14 is: 706,709.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,012.89 : 1,269,604.20 = 512,114.14 : x
  2. Step 2: Convert to fraction form
    920,012.89/1,269,604.20 = 512,114.14/x
  3. Step 3: Cross multiply
    920,012.89x = 1,269,604.20 × 512,114.14
  4. Step 4: Simplify right side
    920,012.89x = 650,182,263,023.39
  5. Step 5: Solve for x
    x = 650,182,263,023.39/920,012.89
  6. Step 6: Final answer
    x = 706,709.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.