Home / 1,212,095-1,672,660.32-668,218.18

Finding the Fourth Proportional to 1,212,095, 1,672,660.32 and 668,218.18

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Solution

The fourth proportional to 1,212,095, 1,672,660.32 and 668,218.18 is: 922,124.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,095 : 1,672,660.32 = 668,218.18 : x
  2. Step 2: Convert to fraction form
    1,212,095/1,672,660.32 = 668,218.18/x
  3. Step 3: Cross multiply
    1,212,095x = 1,672,660.32 × 668,218.18
  4. Step 4: Simplify right side
    1,212,095x = 1,117,702,034,788.62
  5. Step 5: Solve for x
    x = 1,117,702,034,788.62/1,212,095
  6. Step 6: Final answer
    x = 922,124.12

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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.