Home / 427,631.46-641,004.27-351,956.50

Finding the Fourth Proportional to 427,631.46, 641,004.27 and 351,956.50

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Solution

The fourth proportional to 427,631.46, 641,004.27 and 351,956.50 is: 527,570.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,631.46 : 641,004.27 = 351,956.50 : x
  2. Step 2: Convert to fraction form
    427,631.46/641,004.27 = 351,956.50/x
  3. Step 3: Cross multiply
    427,631.46x = 641,004.27 × 351,956.50
  4. Step 4: Simplify right side
    427,631.46x = 225,605,619,354.26
  5. Step 5: Solve for x
    x = 225,605,619,354.26/427,631.46
  6. Step 6: Final answer
    x = 527,570.21

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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.