Home / 670,629.70-1,005,361.35-404,107.30

Finding the Fourth Proportional to 670,629.70, 1,005,361.35 and 404,107.30

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Solution

The fourth proportional to 670,629.70, 1,005,361.35 and 404,107.30 is: 605,809.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,629.70 : 1,005,361.35 = 404,107.30 : x
  2. Step 2: Convert to fraction form
    670,629.70/1,005,361.35 = 404,107.30/x
  3. Step 3: Cross multiply
    670,629.70x = 1,005,361.35 × 404,107.30
  4. Step 4: Simplify right side
    670,629.70x = 406,273,860,672.86
  5. Step 5: Solve for x
    x = 406,273,860,672.86/670,629.70
  6. Step 6: Final answer
    x = 605,809.53

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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.