Home / 2,120,133.60-2,925,860.40-1,214,890.56

Finding the Fourth Proportional to 2,120,133.60, 2,925,860.40 and 1,214,890.56

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Solution

The fourth proportional to 2,120,133.60, 2,925,860.40 and 1,214,890.56 is: 1,676,592.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120,133.60 : 2,925,860.40 = 1,214,890.56 : x
  2. Step 2: Convert to fraction form
    2,120,133.60/2,925,860.40 = 1,214,890.56/x
  3. Step 3: Cross multiply
    2,120,133.60x = 2,925,860.40 × 1,214,890.56
  4. Step 4: Simplify right side
    2,120,133.60x = 3,554,600,179,837.82
  5. Step 5: Solve for x
    x = 3,554,600,179,837.82/2,120,133.60
  6. Step 6: Final answer
    x = 1,676,592.54

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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.