Home / 807,829.52-1,211,740.63-208,739.75

Finding the Fourth Proportional to 807,829.52, 1,211,740.63 and 208,739.75

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Solution

The fourth proportional to 807,829.52, 1,211,740.63 and 208,739.75 is: 313,108.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,829.52 : 1,211,740.63 = 208,739.75 : x
  2. Step 2: Convert to fraction form
    807,829.52/1,211,740.63 = 208,739.75/x
  3. Step 3: Cross multiply
    807,829.52x = 1,211,740.63 × 208,739.75
  4. Step 4: Simplify right side
    807,829.52x = 252,938,429,590.49
  5. Step 5: Solve for x
    x = 252,938,429,590.49/807,829.52
  6. Step 6: Final answer
    x = 313,108.68

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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.