Home / 2,172,021.60-3,258,032.40-1,376,828.40

Finding the Fourth Proportional to 2,172,021.60, 3,258,032.40 and 1,376,828.40

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Solution

The fourth proportional to 2,172,021.60, 3,258,032.40 and 1,376,828.40 is: 2,065,242.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,172,021.60 : 3,258,032.40 = 1,376,828.40 : x
  2. Step 2: Convert to fraction form
    2,172,021.60/3,258,032.40 = 1,376,828.40/x
  3. Step 3: Cross multiply
    2,172,021.60x = 3,258,032.40 × 1,376,828.40
  4. Step 4: Simplify right side
    2,172,021.60x = 4,485,751,536,440.16
  5. Step 5: Solve for x
    x = 4,485,751,536,440.16/2,172,021.60
  6. Step 6: Final answer
    x = 2,065,242.60

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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.