Home / 734,423.80-1,101,635.70-418,912.60

Finding the Fourth Proportional to 734,423.80, 1,101,635.70 and 418,912.60

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Solution

The fourth proportional to 734,423.80, 1,101,635.70 and 418,912.60 is: 628,368.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    734,423.80 : 1,101,635.70 = 418,912.60 : x
  2. Step 2: Convert to fraction form
    734,423.80/1,101,635.70 = 418,912.60/x
  3. Step 3: Cross multiply
    734,423.80x = 1,101,635.70 × 418,912.60
  4. Step 4: Simplify right side
    734,423.80x = 461,489,075,339.82
  5. Step 5: Solve for x
    x = 461,489,075,339.82/734,423.80
  6. Step 6: Final answer
    x = 628,368.90

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Similar ratio
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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.