Home / 780,499.24-1,170,216.14-415,815.37

Finding the Fourth Proportional to 780,499.24, 1,170,216.14 and 415,815.37

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Solution

The fourth proportional to 780,499.24, 1,170,216.14 and 415,815.37 is: 623,439.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,499.24 : 1,170,216.14 = 415,815.37 : x
  2. Step 2: Convert to fraction form
    780,499.24/1,170,216.14 = 415,815.37/x
  3. Step 3: Cross multiply
    780,499.24x = 1,170,216.14 × 415,815.37
  4. Step 4: Simplify right side
    780,499.24x = 486,593,852,229.46
  5. Step 5: Solve for x
    x = 486,593,852,229.46/780,499.24
  6. Step 6: Final answer
    x = 623,439.24

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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.