Home / 1,315,861.20-1,973,791.80-867,088.80

Finding the Fourth Proportional to 1,315,861.20, 1,973,791.80 and 867,088.80

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Solution

The fourth proportional to 1,315,861.20, 1,973,791.80 and 867,088.80 is: 1,300,633.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,861.20 : 1,973,791.80 = 867,088.80 : x
  2. Step 2: Convert to fraction form
    1,315,861.20/1,973,791.80 = 867,088.80/x
  3. Step 3: Cross multiply
    1,315,861.20x = 1,973,791.80 × 867,088.80
  4. Step 4: Simplify right side
    1,315,861.20x = 1,711,452,763,311.84
  5. Step 5: Solve for x
    x = 1,711,452,763,311.84/1,315,861.20
  6. Step 6: Final answer
    x = 1,300,633.20

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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.