Home / 1,520,238.70-2,097,929.60-831,910.70

Finding the Fourth Proportional to 1,520,238.70, 2,097,929.60 and 831,910.70

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Solution

The fourth proportional to 1,520,238.70, 2,097,929.60 and 831,910.70 is: 1,148,036.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,238.70 : 2,097,929.60 = 831,910.70 : x
  2. Step 2: Convert to fraction form
    1,520,238.70/2,097,929.60 = 831,910.70/x
  3. Step 3: Cross multiply
    1,520,238.70x = 2,097,929.60 × 831,910.70
  4. Step 4: Simplify right side
    1,520,238.70x = 1,745,290,082,086.72
  5. Step 5: Solve for x
    x = 1,745,290,082,086.72/1,520,238.70
  6. Step 6: Final answer
    x = 1,148,036.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.