Home / 1,330,209.30-1,993,125.15-768,263.70

Finding the Fourth Proportional to 1,330,209.30, 1,993,125.15 and 768,263.70

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Solution

The fourth proportional to 1,330,209.30, 1,993,125.15 and 768,263.70 is: 1,151,131.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,209.30 : 1,993,125.15 = 768,263.70 : x
  2. Step 2: Convert to fraction form
    1,330,209.30/1,993,125.15 = 768,263.70/x
  3. Step 3: Cross multiply
    1,330,209.30x = 1,993,125.15 × 768,263.70
  4. Step 4: Simplify right side
    1,330,209.30x = 1,531,245,702,302.06
  5. Step 5: Solve for x
    x = 1,531,245,702,302.06/1,330,209.30
  6. Step 6: Final answer
    x = 1,151,131.41

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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.