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Finding the Fourth Proportional to 369,797, 554,739.24 and 120,479

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Solution

The fourth proportional to 369,797, 554,739.24 and 120,479 is: 180,732.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,797 : 554,739.24 = 120,479 : x
  2. Step 2: Convert to fraction form
    369,797/554,739.24 = 120,479/x
  3. Step 3: Cross multiply
    369,797x = 554,739.24 × 120,479
  4. Step 4: Simplify right side
    369,797x = 66,834,428,895.96
  5. Step 5: Solve for x
    x = 66,834,428,895.96/369,797
  6. Step 6: Final answer
    x = 180,732.75

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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.