Home / 1,389,337.70-2,084,006.55-829,465.70

Finding the Fourth Proportional to 1,389,337.70, 2,084,006.55 and 829,465.70

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Solution

The fourth proportional to 1,389,337.70, 2,084,006.55 and 829,465.70 is: 1,244,198.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,337.70 : 2,084,006.55 = 829,465.70 : x
  2. Step 2: Convert to fraction form
    1,389,337.70/2,084,006.55 = 829,465.70/x
  3. Step 3: Cross multiply
    1,389,337.70x = 2,084,006.55 × 829,465.70
  4. Step 4: Simplify right side
    1,389,337.70x = 1,728,611,951,800.34
  5. Step 5: Solve for x
    x = 1,728,611,951,800.34/1,389,337.70
  6. Step 6: Final answer
    x = 1,244,198.55

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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.