Home / 1,361,813.85-2,042,720.78-830,372.85

Finding the Fourth Proportional to 1,361,813.85, 2,042,720.78 and 830,372.85

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Solution

The fourth proportional to 1,361,813.85, 2,042,720.78 and 830,372.85 is: 1,245,559.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361,813.85 : 2,042,720.78 = 830,372.85 : x
  2. Step 2: Convert to fraction form
    1,361,813.85/2,042,720.78 = 830,372.85/x
  3. Step 3: Cross multiply
    1,361,813.85x = 2,042,720.78 × 830,372.85
  4. Step 4: Simplify right side
    1,361,813.85x = 1,696,219,871,690.96
  5. Step 5: Solve for x
    x = 1,696,219,871,690.96/1,361,813.85
  6. Step 6: Final answer
    x = 1,245,559.28

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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.