Home / 1,279,661.07-1,918,015.22-480,432.85

Finding the Fourth Proportional to 1,279,661.07, 1,918,015.22 and 480,432.85

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Solution

The fourth proportional to 1,279,661.07, 1,918,015.22 and 480,432.85 is: 720,094.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,661.07 : 1,918,015.22 = 480,432.85 : x
  2. Step 2: Convert to fraction form
    1,279,661.07/1,918,015.22 = 480,432.85/x
  3. Step 3: Cross multiply
    1,279,661.07x = 1,918,015.22 × 480,432.85
  4. Step 4: Simplify right side
    1,279,661.07x = 921,477,518,487.98
  5. Step 5: Solve for x
    x = 921,477,518,487.98/1,279,661.07
  6. Step 6: Final answer
    x = 720,094.98

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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.