Home / 1,212,485.49-1,673,191.49-668,644.20

Finding the Fourth Proportional to 1,212,485.49, 1,673,191.49 and 668,644.20

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Solution

The fourth proportional to 1,212,485.49, 1,673,191.49 and 668,644.20 is: 922,707.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,485.49 : 1,673,191.49 = 668,644.20 : x
  2. Step 2: Convert to fraction form
    1,212,485.49/1,673,191.49 = 668,644.20/x
  3. Step 3: Cross multiply
    1,212,485.49x = 1,673,191.49 × 668,644.20
  4. Step 4: Simplify right side
    1,212,485.49x = 1,118,769,781,934.64
  5. Step 5: Solve for x
    x = 1,118,769,781,934.64/1,212,485.49
  6. Step 6: Final answer
    x = 922,707.77

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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.