Home / 1,235,475.20-1,853,516.55-425,872.10

Finding the Fourth Proportional to 1,235,475.20, 1,853,516.55 and 425,872.10

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Solution

The fourth proportional to 1,235,475.20, 1,853,516.55 and 425,872.10 is: 638,912.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,475.20 : 1,853,516.55 = 425,872.10 : x
  2. Step 2: Convert to fraction form
    1,235,475.20/1,853,516.55 = 425,872.10/x
  3. Step 3: Cross multiply
    1,235,475.20x = 1,853,516.55 × 425,872.10
  4. Step 4: Simplify right side
    1,235,475.20x = 789,360,985,533.26
  5. Step 5: Solve for x
    x = 789,360,985,533.26/1,235,475.20
  6. Step 6: Final answer
    x = 638,912.85

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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.