Home / 1,279,149.40-1,918,373.10-480,370.60

Finding the Fourth Proportional to 1,279,149.40, 1,918,373.10 and 480,370.60

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Solution

The fourth proportional to 1,279,149.40, 1,918,373.10 and 480,370.60 is: 720,424.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,149.40 : 1,918,373.10 = 480,370.60 : x
  2. Step 2: Convert to fraction form
    1,279,149.40/1,918,373.10 = 480,370.60/x
  3. Step 3: Cross multiply
    1,279,149.40x = 1,918,373.10 × 480,370.60
  4. Step 4: Simplify right side
    1,279,149.40x = 921,530,037,070.86
  5. Step 5: Solve for x
    x = 921,530,037,070.86/1,279,149.40
  6. Step 6: Final answer
    x = 720,424.09

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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.