Home / 2,115,923.16-3,174,499.54-768,064.28

Finding the Fourth Proportional to 2,115,923.16, 3,174,499.54 and 768,064.28

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Solution

The fourth proportional to 2,115,923.16, 3,174,499.54 and 768,064.28 is: 1,152,319.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,115,923.16 : 3,174,499.54 = 768,064.28 : x
  2. Step 2: Convert to fraction form
    2,115,923.16/3,174,499.54 = 768,064.28/x
  3. Step 3: Cross multiply
    2,115,923.16x = 3,174,499.54 × 768,064.28
  4. Step 4: Simplify right side
    2,115,923.16x = 2,438,219,703,550.43
  5. Step 5: Solve for x
    x = 2,438,219,703,550.43/2,115,923.16
  6. Step 6: Final answer
    x = 1,152,319.59

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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.