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Finding the Fourth Proportional to 667,059.09, 920,534.94 and 361,127.40

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Solution

The fourth proportional to 667,059.09, 920,534.94 and 361,127.40 is: 498,352.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,059.09 : 920,534.94 = 361,127.40 : x
  2. Step 2: Convert to fraction form
    667,059.09/920,534.94 = 361,127.40/x
  3. Step 3: Cross multiply
    667,059.09x = 920,534.94 × 361,127.40
  4. Step 4: Simplify right side
    667,059.09x = 332,430,389,491.36
  5. Step 5: Solve for x
    x = 332,430,389,491.36/667,059.09
  6. Step 6: Final answer
    x = 498,352.24

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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.