Home / 698,574.96-1,045,773.85-427,850.67

Finding the Fourth Proportional to 698,574.96, 1,045,773.85 and 427,850.67

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Solution

The fourth proportional to 698,574.96, 1,045,773.85 and 427,850.67 is: 640,496.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,574.96 : 1,045,773.85 = 427,850.67 : x
  2. Step 2: Convert to fraction form
    698,574.96/1,045,773.85 = 427,850.67/x
  3. Step 3: Cross multiply
    698,574.96x = 1,045,773.85 × 427,850.67
  4. Step 4: Simplify right side
    698,574.96x = 447,435,042,235.05
  5. Step 5: Solve for x
    x = 447,435,042,235.05/698,574.96
  6. Step 6: Final answer
    x = 640,496.83

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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.