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Finding the Fourth Proportional to 547,860.41, 756,032.82 and 306,144.96

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Solution

The fourth proportional to 547,860.41, 756,032.82 and 306,144.96 is: 422,471.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,860.41 : 756,032.82 = 306,144.96 : x
  2. Step 2: Convert to fraction form
    547,860.41/756,032.82 = 306,144.96/x
  3. Step 3: Cross multiply
    547,860.41x = 756,032.82 × 306,144.96
  4. Step 4: Simplify right side
    547,860.41x = 231,455,637,437.59
  5. Step 5: Solve for x
    x = 231,455,637,437.59/547,860.41
  6. Step 6: Final answer
    x = 422,471.92

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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.