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Finding the Fourth Proportional to 534,321.48, 737,358.40 and 289,305.04

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Solution

The fourth proportional to 534,321.48, 737,358.40 and 289,305.04 is: 399,238.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,321.48 : 737,358.40 = 289,305.04 : x
  2. Step 2: Convert to fraction form
    534,321.48/737,358.40 = 289,305.04/x
  3. Step 3: Cross multiply
    534,321.48x = 737,358.40 × 289,305.04
  4. Step 4: Simplify right side
    534,321.48x = 213,321,501,406.34
  5. Step 5: Solve for x
    x = 213,321,501,406.34/534,321.48
  6. Step 6: Final answer
    x = 399,238.12

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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.