Home / 1,378,004.23-1,901,709.12-766,219.81

Finding the Fourth Proportional to 1,378,004.23, 1,901,709.12 and 766,219.81

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Solution

The fourth proportional to 1,378,004.23, 1,901,709.12 and 766,219.81 is: 1,057,418.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,004.23 : 1,901,709.12 = 766,219.81 : x
  2. Step 2: Convert to fraction form
    1,378,004.23/1,901,709.12 = 766,219.81/x
  3. Step 3: Cross multiply
    1,378,004.23x = 1,901,709.12 × 766,219.81
  4. Step 4: Simplify right side
    1,378,004.23x = 1,457,127,200,601.67
  5. Step 5: Solve for x
    x = 1,457,127,200,601.67/1,378,004.23
  6. Step 6: Final answer
    x = 1,057,418.53

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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.