Home / 717,765.48-1,076,789.76-205,435.44

Finding the Fourth Proportional to 717,765.48, 1,076,789.76 and 205,435.44

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Solution

The fourth proportional to 717,765.48, 1,076,789.76 and 205,435.44 is: 308,193.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,765.48 : 1,076,789.76 = 205,435.44 : x
  2. Step 2: Convert to fraction form
    717,765.48/1,076,789.76 = 205,435.44/x
  3. Step 3: Cross multiply
    717,765.48x = 1,076,789.76 × 205,435.44
  4. Step 4: Simplify right side
    717,765.48x = 221,210,778,133.09
  5. Step 5: Solve for x
    x = 221,210,778,133.09/717,765.48
  6. Step 6: Final answer
    x = 308,193.67

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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.