Home / 1,212,420.60-1,673,240.04-668,662.74

Finding the Fourth Proportional to 1,212,420.60, 1,673,240.04 and 668,662.74

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Solution

The fourth proportional to 1,212,420.60, 1,673,240.04 and 668,662.74 is: 922,809.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,420.60 : 1,673,240.04 = 668,662.74 : x
  2. Step 2: Convert to fraction form
    1,212,420.60/1,673,240.04 = 668,662.74/x
  3. Step 3: Cross multiply
    1,212,420.60x = 1,673,240.04 × 668,662.74
  4. Step 4: Simplify right side
    1,212,420.60x = 1,118,833,269,824.11
  5. Step 5: Solve for x
    x = 1,118,833,269,824.11/1,212,420.60
  6. Step 6: Final answer
    x = 922,809.52

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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.