Home / 1,212,016.58-1,672,587.95-668,140.43

Finding the Fourth Proportional to 1,212,016.58, 1,672,587.95 and 668,140.43

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Solution

The fourth proportional to 1,212,016.58, 1,672,587.95 and 668,140.43 is: 922,036.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,016.58 : 1,672,587.95 = 668,140.43 : x
  2. Step 2: Convert to fraction form
    1,212,016.58/1,672,587.95 = 668,140.43/x
  3. Step 3: Cross multiply
    1,212,016.58x = 1,672,587.95 × 668,140.43
  4. Step 4: Simplify right side
    1,212,016.58x = 1,117,523,632,125.82
  5. Step 5: Solve for x
    x = 1,117,523,632,125.82/1,212,016.58
  6. Step 6: Final answer
    x = 922,036.59

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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.