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Finding the Fourth Proportional to 521,328.82, 719,372.24 and 300,563.63

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Solution

The fourth proportional to 521,328.82, 719,372.24 and 300,563.63 is: 414,742.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,328.82 : 719,372.24 = 300,563.63 : x
  2. Step 2: Convert to fraction form
    521,328.82/719,372.24 = 300,563.63/x
  3. Step 3: Cross multiply
    521,328.82x = 719,372.24 × 300,563.63
  4. Step 4: Simplify right side
    521,328.82x = 216,217,131,775.63
  5. Step 5: Solve for x
    x = 216,217,131,775.63/521,328.82
  6. Step 6: Final answer
    x = 414,742.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.