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Finding the Fourth Proportional to 508,968.54, 702,682.02 and 318,241.08

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Solution

The fourth proportional to 508,968.54, 702,682.02 and 318,241.08 is: 439,363.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,968.54 : 702,682.02 = 318,241.08 : x
  2. Step 2: Convert to fraction form
    508,968.54/702,682.02 = 318,241.08/x
  3. Step 3: Cross multiply
    508,968.54x = 702,682.02 × 318,241.08
  4. Step 4: Simplify right side
    508,968.54x = 223,622,284,941.38
  5. Step 5: Solve for x
    x = 223,622,284,941.38/508,968.54
  6. Step 6: Final answer
    x = 439,363.67

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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.