Home / 434,500,390.80-651,750,586.20-378,380,221.20

Finding the Fourth Proportional to 434,500,390.80, 651,750,586.20 and 378,380,221.20

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Solution

The fourth proportional to 434,500,390.80, 651,750,586.20 and 378,380,221.20 is: 567,570,331.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,500,390.80 : 651,750,586.20 = 378,380,221.20 : x
  2. Step 2: Convert to fraction form
    434,500,390.80/651,750,586.20 = 378,380,221.20/x
  3. Step 3: Cross multiply
    434,500,390.80x = 651,750,586.20 × 378,380,221.20
  4. Step 4: Simplify right side
    434,500,390.80x = 246,609,530,973,585,664
  5. Step 5: Solve for x
    x = 246,609,530,973,585,664/434,500,390.80
  6. Step 6: Final answer
    x = 567,570,331.80

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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.