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Finding the Fourth Proportional to 554,624.42, 765,381.12 and 299,975

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Solution

The fourth proportional to 554,624.42, 765,381.12 and 299,975 is: 413,965.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,624.42 : 765,381.12 = 299,975 : x
  2. Step 2: Convert to fraction form
    554,624.42/765,381.12 = 299,975/x
  3. Step 3: Cross multiply
    554,624.42x = 765,381.12 × 299,975
  4. Step 4: Simplify right side
    554,624.42x = 229,595,201,472
  5. Step 5: Solve for x
    x = 229,595,201,472/554,624.42
  6. Step 6: Final answer
    x = 413,965.19

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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.