Home / 1,378,890.56-1,902,883.50-758,703.77

Finding the Fourth Proportional to 1,378,890.56, 1,902,883.50 and 758,703.77

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Solution

The fourth proportional to 1,378,890.56, 1,902,883.50 and 758,703.77 is: 1,047,019.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,890.56 : 1,902,883.50 = 758,703.77 : x
  2. Step 2: Convert to fraction form
    1,378,890.56/1,902,883.50 = 758,703.77/x
  3. Step 3: Cross multiply
    1,378,890.56x = 1,902,883.50 × 758,703.77
  4. Step 4: Simplify right side
    1,378,890.56x = 1,443,724,890,078.00
  5. Step 5: Solve for x
    x = 1,443,724,890,078.00/1,378,890.56
  6. Step 6: Final answer
    x = 1,047,019.20

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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.