Home / 774,406.36-1,161,667.86-213,436

Finding the Fourth Proportional to 774,406.36, 1,161,667.86 and 213,436

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Solution

The fourth proportional to 774,406.36, 1,161,667.86 and 213,436 is: 320,170.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,406.36 : 1,161,667.86 = 213,436 : x
  2. Step 2: Convert to fraction form
    774,406.36/1,161,667.86 = 213,436/x
  3. Step 3: Cross multiply
    774,406.36x = 1,161,667.86 × 213,436
  4. Step 4: Simplify right side
    774,406.36x = 247,941,741,366.96
  5. Step 5: Solve for x
    x = 247,941,741,366.96/774,406.36
  6. Step 6: Final answer
    x = 320,170.07

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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.