Home / 513,496.03-770,314.12-213,906.55

Finding the Fourth Proportional to 513,496.03, 770,314.12 and 213,906.55

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Solution

The fourth proportional to 513,496.03, 770,314.12 and 213,906.55 is: 320,889.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,496.03 : 770,314.12 = 213,906.55 : x
  2. Step 2: Convert to fraction form
    513,496.03/770,314.12 = 213,906.55/x
  3. Step 3: Cross multiply
    513,496.03x = 770,314.12 × 213,906.55
  4. Step 4: Simplify right side
    513,496.03x = 164,775,232,642.77
  5. Step 5: Solve for x
    x = 164,775,232,642.77/513,496.03
  6. Step 6: Final answer
    x = 320,889.01

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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.