Home / 520,964.42-719,042.56-339,352.30

Finding the Fourth Proportional to 520,964.42, 719,042.56 and 339,352.30

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Solution

The fourth proportional to 520,964.42, 719,042.56 and 339,352.30 is: 468,378.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,964.42 : 719,042.56 = 339,352.30 : x
  2. Step 2: Convert to fraction form
    520,964.42/719,042.56 = 339,352.30/x
  3. Step 3: Cross multiply
    520,964.42x = 719,042.56 × 339,352.30
  4. Step 4: Simplify right side
    520,964.42x = 244,008,743,887.90
  5. Step 5: Solve for x
    x = 244,008,743,887.90/520,964.42
  6. Step 6: Final answer
    x = 468,378.90

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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.