Home / 999,816.30-1,499,415.84-289,896.66

Finding the Fourth Proportional to 999,816.30, 1,499,415.84 and 289,896.66

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Solution

The fourth proportional to 999,816.30, 1,499,415.84 and 289,896.66 is: 434,755.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,816.30 : 1,499,415.84 = 289,896.66 : x
  2. Step 2: Convert to fraction form
    999,816.30/1,499,415.84 = 289,896.66/x
  3. Step 3: Cross multiply
    999,816.30x = 1,499,415.84 × 289,896.66
  4. Step 4: Simplify right side
    999,816.30x = 434,675,643,967.09
  5. Step 5: Solve for x
    x = 434,675,643,967.09/999,816.30
  6. Step 6: Final answer
    x = 434,755.51

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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.