Home / 645,386.55-967,749.34-379,227.03

Finding the Fourth Proportional to 645,386.55, 967,749.34 and 379,227.03

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Solution

The fourth proportional to 645,386.55, 967,749.34 and 379,227.03 is: 568,646.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,386.55 : 967,749.34 = 379,227.03 : x
  2. Step 2: Convert to fraction form
    645,386.55/967,749.34 = 379,227.03/x
  3. Step 3: Cross multiply
    645,386.55x = 967,749.34 × 379,227.03
  4. Step 4: Simplify right side
    645,386.55x = 366,996,701,257.78
  5. Step 5: Solve for x
    x = 366,996,701,257.78/645,386.55
  6. Step 6: Final answer
    x = 568,646.35

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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.