Home / 1,312,226.73-1,810,911.26-768,311.62

Finding the Fourth Proportional to 1,312,226.73, 1,810,911.26 and 768,311.62

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Solution

The fourth proportional to 1,312,226.73, 1,810,911.26 and 768,311.62 is: 1,060,292.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,226.73 : 1,810,911.26 = 768,311.62 : x
  2. Step 2: Convert to fraction form
    1,312,226.73/1,810,911.26 = 768,311.62/x
  3. Step 3: Cross multiply
    1,312,226.73x = 1,810,911.26 × 768,311.62
  4. Step 4: Simplify right side
    1,312,226.73x = 1,391,344,163,846.84
  5. Step 5: Solve for x
    x = 1,391,344,163,846.84/1,312,226.73
  6. Step 6: Final answer
    x = 1,060,292.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.