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Finding the Fourth Proportional to 534,419.65, 737,499.84 and 289,404.84

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Solution

The fourth proportional to 534,419.65, 737,499.84 and 289,404.84 is: 399,379.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,419.65 : 737,499.84 = 289,404.84 : x
  2. Step 2: Convert to fraction form
    534,419.65/737,499.84 = 289,404.84/x
  3. Step 3: Cross multiply
    534,419.65x = 737,499.84 × 289,404.84
  4. Step 4: Simplify right side
    534,419.65x = 213,436,018,060.70
  5. Step 5: Solve for x
    x = 213,436,018,060.70/534,419.65
  6. Step 6: Final answer
    x = 399,379.06

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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.