Home / 2,131,421.60-3,205,005.60-1,785,000.80

Finding the Fourth Proportional to 2,131,421.60, 3,205,005.60 and 1,785,000.80

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Solution

The fourth proportional to 2,131,421.60, 3,205,005.60 and 1,785,000.80 is: 2,684,094.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,421.60 : 3,205,005.60 = 1,785,000.80 : x
  2. Step 2: Convert to fraction form
    2,131,421.60/3,205,005.60 = 1,785,000.80/x
  3. Step 3: Cross multiply
    2,131,421.60x = 3,205,005.60 × 1,785,000.80
  4. Step 4: Simplify right side
    2,131,421.60x = 5,720,937,560,004.48
  5. Step 5: Solve for x
    x = 5,720,937,560,004.48/2,131,421.60
  6. Step 6: Final answer
    x = 2,684,094.77

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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.