Home / 1,079,278.14-1,618,635.10-320,915.37

Finding the Fourth Proportional to 1,079,278.14, 1,618,635.10 and 320,915.37

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Solution

The fourth proportional to 1,079,278.14, 1,618,635.10 and 320,915.37 is: 481,289.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,278.14 : 1,618,635.10 = 320,915.37 : x
  2. Step 2: Convert to fraction form
    1,079,278.14/1,618,635.10 = 320,915.37/x
  3. Step 3: Cross multiply
    1,079,278.14x = 1,618,635.10 × 320,915.37
  4. Step 4: Simplify right side
    1,079,278.14x = 519,444,882,011.49
  5. Step 5: Solve for x
    x = 519,444,882,011.49/1,079,278.14
  6. Step 6: Final answer
    x = 481,289.17

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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.