Home / 1,144,977.40-1,715,997.30-639,537.40

Finding the Fourth Proportional to 1,144,977.40, 1,715,997.30 and 639,537.40

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Solution

The fourth proportional to 1,144,977.40, 1,715,997.30 and 639,537.40 is: 958,485.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,144,977.40 : 1,715,997.30 = 639,537.40 : x
  2. Step 2: Convert to fraction form
    1,144,977.40/1,715,997.30 = 639,537.40/x
  3. Step 3: Cross multiply
    1,144,977.40x = 1,715,997.30 × 639,537.40
  4. Step 4: Simplify right side
    1,144,977.40x = 1,097,444,451,649.02
  5. Step 5: Solve for x
    x = 1,097,444,451,649.02/1,144,977.40
  6. Step 6: Final answer
    x = 958,485.69

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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.