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Finding the Fourth Proportional to 548,342.70, 756,715.38 and 306,625.35

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Solution

The fourth proportional to 548,342.70, 756,715.38 and 306,625.35 is: 423,144.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,342.70 : 756,715.38 = 306,625.35 : x
  2. Step 2: Convert to fraction form
    548,342.70/756,715.38 = 306,625.35/x
  3. Step 3: Cross multiply
    548,342.70x = 756,715.38 × 306,625.35
  4. Step 4: Simplify right side
    548,342.70x = 232,028,118,242.88
  5. Step 5: Solve for x
    x = 232,028,118,242.88/548,342.70
  6. Step 6: Final answer
    x = 423,144.36

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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.