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Finding the Fourth Proportional to 548,758.99, 757,307.68 and 300,418.35

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Solution

The fourth proportional to 548,758.99, 757,307.68 and 300,418.35 is: 414,588.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,758.99 : 757,307.68 = 300,418.35 : x
  2. Step 2: Convert to fraction form
    548,758.99/757,307.68 = 300,418.35/x
  3. Step 3: Cross multiply
    548,758.99x = 757,307.68 × 300,418.35
  4. Step 4: Simplify right side
    548,758.99x = 227,509,120,076.98
  5. Step 5: Solve for x
    x = 227,509,120,076.98/548,758.99
  6. Step 6: Final answer
    x = 414,588.41

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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.