Home / 1,047,864.30-1,571,796.45-728,999.70

Finding the Fourth Proportional to 1,047,864.30, 1,571,796.45 and 728,999.70

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Solution

The fourth proportional to 1,047,864.30, 1,571,796.45 and 728,999.70 is: 1,093,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,047,864.30 : 1,571,796.45 = 728,999.70 : x
  2. Step 2: Convert to fraction form
    1,047,864.30/1,571,796.45 = 728,999.70/x
  3. Step 3: Cross multiply
    1,047,864.30x = 1,571,796.45 × 728,999.70
  4. Step 4: Simplify right side
    1,047,864.30x = 1,145,839,140,511.07
  5. Step 5: Solve for x
    x = 1,145,839,140,511.07/1,047,864.30
  6. Step 6: Final answer
    x = 1,093,499.55

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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.