Home / 1,279,684.35-1,918,050.03-480,456.14

Finding the Fourth Proportional to 1,279,684.35, 1,918,050.03 and 480,456.14

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Solution

The fourth proportional to 1,279,684.35, 1,918,050.03 and 480,456.14 is: 720,129.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,684.35 : 1,918,050.03 = 480,456.14 : x
  2. Step 2: Convert to fraction form
    1,279,684.35/1,918,050.03 = 480,456.14/x
  3. Step 3: Cross multiply
    1,279,684.35x = 1,918,050.03 × 480,456.14
  4. Step 4: Simplify right side
    1,279,684.35x = 921,538,904,150.43
  5. Step 5: Solve for x
    x = 921,538,904,150.43/1,279,684.35
  6. Step 6: Final answer
    x = 720,129.85

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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.