Home / 1,378,355.52-2,065,422.96-927,405.84

Finding the Fourth Proportional to 1,378,355.52, 2,065,422.96 and 927,405.84

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Solution

The fourth proportional to 1,378,355.52, 2,065,422.96 and 927,405.84 is: 1,389,688.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,355.52 : 2,065,422.96 = 927,405.84 : x
  2. Step 2: Convert to fraction form
    1,378,355.52/2,065,422.96 = 927,405.84/x
  3. Step 3: Cross multiply
    1,378,355.52x = 2,065,422.96 × 927,405.84
  4. Step 4: Simplify right side
    1,378,355.52x = 1,915,485,315,174.09
  5. Step 5: Solve for x
    x = 1,915,485,315,174.09/1,378,355.52
  6. Step 6: Final answer
    x = 1,389,688.86

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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.