Home / 726,497.38-1,089,735.09-326,855.98

Finding the Fourth Proportional to 726,497.38, 1,089,735.09 and 326,855.98

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Solution

The fourth proportional to 726,497.38, 1,089,735.09 and 326,855.98 is: 490,279.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,497.38 : 1,089,735.09 = 326,855.98 : x
  2. Step 2: Convert to fraction form
    726,497.38/1,089,735.09 = 326,855.98/x
  3. Step 3: Cross multiply
    726,497.38x = 1,089,735.09 × 326,855.98
  4. Step 4: Simplify right side
    726,497.38x = 356,186,430,782.34
  5. Step 5: Solve for x
    x = 356,186,430,782.34/726,497.38
  6. Step 6: Final answer
    x = 490,279.03

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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.