Home / 513,488.03-770,302.11-213,898.55

Finding the Fourth Proportional to 513,488.03, 770,302.11 and 213,898.55

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Solution

The fourth proportional to 513,488.03, 770,302.11 and 213,898.55 is: 320,877.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,488.03 : 770,302.11 = 213,898.55 : x
  2. Step 2: Convert to fraction form
    513,488.03/770,302.11 = 213,898.55/x
  3. Step 3: Cross multiply
    513,488.03x = 770,302.11 × 213,898.55
  4. Step 4: Simplify right side
    513,488.03x = 164,766,504,390.94
  5. Step 5: Solve for x
    x = 164,766,504,390.94/513,488.03
  6. Step 6: Final answer
    x = 320,877.01

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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.