Home / 1,433,936.18-1,978,857.10-780,581

Finding the Fourth Proportional to 1,433,936.18, 1,978,857.10 and 780,581

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Solution

The fourth proportional to 1,433,936.18, 1,978,857.10 and 780,581 is: 1,077,215.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,936.18 : 1,978,857.10 = 780,581 : x
  2. Step 2: Convert to fraction form
    1,433,936.18/1,978,857.10 = 780,581/x
  3. Step 3: Cross multiply
    1,433,936.18x = 1,978,857.10 × 780,581
  4. Step 4: Simplify right side
    1,433,936.18x = 1,544,658,253,975.10
  5. Step 5: Solve for x
    x = 1,544,658,253,975.10/1,433,936.18
  6. Step 6: Final answer
    x = 1,077,215.48

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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.