Home / 2,157,988.32-3,236,981.40-641,664.72

Finding the Fourth Proportional to 2,157,988.32, 3,236,981.40 and 641,664.72

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Solution

The fourth proportional to 2,157,988.32, 3,236,981.40 and 641,664.72 is: 962,496.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,988.32 : 3,236,981.40 = 641,664.72 : x
  2. Step 2: Convert to fraction form
    2,157,988.32/3,236,981.40 = 641,664.72/x
  3. Step 3: Cross multiply
    2,157,988.32x = 3,236,981.40 × 641,664.72
  4. Step 4: Simplify right side
    2,157,988.32x = 2,077,056,763,676.21
  5. Step 5: Solve for x
    x = 2,077,056,763,676.21/2,157,988.32
  6. Step 6: Final answer
    x = 962,496.76

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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.