Home / 1,392,117.70-2,084,029.35-830,863.30

Finding the Fourth Proportional to 1,392,117.70, 2,084,029.35 and 830,863.30

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Solution

The fourth proportional to 1,392,117.70, 2,084,029.35 and 830,863.30 is: 1,243,819.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,117.70 : 2,084,029.35 = 830,863.30 : x
  2. Step 2: Convert to fraction form
    1,392,117.70/2,084,029.35 = 830,863.30/x
  3. Step 3: Cross multiply
    1,392,117.70x = 2,084,029.35 × 830,863.30
  4. Step 4: Simplify right side
    1,392,117.70x = 1,731,543,503,037.86
  5. Step 5: Solve for x
    x = 1,731,543,503,037.86/1,392,117.70
  6. Step 6: Final answer
    x = 1,243,819.76

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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.