Home / 1,235,474.70-1,853,515.80-425,871.60

Finding the Fourth Proportional to 1,235,474.70, 1,853,515.80 and 425,871.60

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Solution

The fourth proportional to 1,235,474.70, 1,853,515.80 and 425,871.60 is: 638,912.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,474.70 : 1,853,515.80 = 425,871.60 : x
  2. Step 2: Convert to fraction form
    1,235,474.70/1,853,515.80 = 425,871.60/x
  3. Step 3: Cross multiply
    1,235,474.70x = 1,853,515.80 × 425,871.60
  4. Step 4: Simplify right side
    1,235,474.70x = 789,359,739,371.28
  5. Step 5: Solve for x
    x = 789,359,739,371.28/1,235,474.70
  6. Step 6: Final answer
    x = 638,912.10

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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.