Home / 1,425,961.60-2,138,942.40-1,216,009.60

Finding the Fourth Proportional to 1,425,961.60, 2,138,942.40 and 1,216,009.60

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Solution

The fourth proportional to 1,425,961.60, 2,138,942.40 and 1,216,009.60 is: 1,824,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,961.60 : 2,138,942.40 = 1,216,009.60 : x
  2. Step 2: Convert to fraction form
    1,425,961.60/2,138,942.40 = 1,216,009.60/x
  3. Step 3: Cross multiply
    1,425,961.60x = 2,138,942.40 × 1,216,009.60
  4. Step 4: Simplify right side
    1,425,961.60x = 2,600,974,492,247.04
  5. Step 5: Solve for x
    x = 2,600,974,492,247.04/1,425,961.60
  6. Step 6: Final answer
    x = 1,824,014.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.