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Finding the Fourth Proportional to 547,860.02, 756,032.30 and 306,144.59

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Solution

The fourth proportional to 547,860.02, 756,032.30 and 306,144.59 is: 422,471.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,860.02 : 756,032.30 = 306,144.59 : x
  2. Step 2: Convert to fraction form
    547,860.02/756,032.30 = 306,144.59/x
  3. Step 3: Cross multiply
    547,860.02x = 756,032.30 × 306,144.59
  4. Step 4: Simplify right side
    547,860.02x = 231,455,193,199.37
  5. Step 5: Solve for x
    x = 231,455,193,199.37/547,860.02
  6. Step 6: Final answer
    x = 422,471.41

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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.