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Finding the Fourth Proportional to 547,852.89, 756,022.47 and 306,137.45

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Solution

The fourth proportional to 547,852.89, 756,022.47 and 306,137.45 is: 422,461.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,852.89 : 756,022.47 = 306,137.45 : x
  2. Step 2: Convert to fraction form
    547,852.89/756,022.47 = 306,137.45/x
  3. Step 3: Cross multiply
    547,852.89x = 756,022.47 × 306,137.45
  4. Step 4: Simplify right side
    547,852.89x = 231,446,787,328.39
  5. Step 5: Solve for x
    x = 231,446,787,328.39/547,852.89
  6. Step 6: Final answer
    x = 422,461.56

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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.