Home / 1,216,013.19-1,677,867.26-763,100.07

Finding the Fourth Proportional to 1,216,013.19, 1,677,867.26 and 763,100.07

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Solution

The fourth proportional to 1,216,013.19, 1,677,867.26 and 763,100.07 is: 1,052,933.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,013.19 : 1,677,867.26 = 763,100.07 : x
  2. Step 2: Convert to fraction form
    1,216,013.19/1,677,867.26 = 763,100.07/x
  3. Step 3: Cross multiply
    1,216,013.19x = 1,677,867.26 × 763,100.07
  4. Step 4: Simplify right side
    1,216,013.19x = 1,280,380,619,741.21
  5. Step 5: Solve for x
    x = 1,280,380,619,741.21/1,216,013.19
  6. Step 6: Final answer
    x = 1,052,933.17

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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.