Home / 3,129,116.82-4,692,203.87-1,210,931.37

Finding the Fourth Proportional to 3,129,116.82, 4,692,203.87 and 1,210,931.37

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Solution

The fourth proportional to 3,129,116.82, 4,692,203.87 and 1,210,931.37 is: 1,815,827.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129,116.82 : 4,692,203.87 = 1,210,931.37 : x
  2. Step 2: Convert to fraction form
    3,129,116.82/4,692,203.87 = 1,210,931.37/x
  3. Step 3: Cross multiply
    3,129,116.82x = 4,692,203.87 × 1,210,931.37
  4. Step 4: Simplify right side
    3,129,116.82x = 5,681,936,857,969.49
  5. Step 5: Solve for x
    x = 5,681,936,857,969.49/3,129,116.82
  6. Step 6: Final answer
    x = 1,815,827.65

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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.