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Finding the Fourth Proportional to 547,862.41, 756,035.65 and 306,146.97

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Solution

The fourth proportional to 547,862.41, 756,035.65 and 306,146.97 is: 422,474.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,862.41 : 756,035.65 = 306,146.97 : x
  2. Step 2: Convert to fraction form
    547,862.41/756,035.65 = 306,146.97/x
  3. Step 3: Cross multiply
    547,862.41x = 756,035.65 × 306,146.97
  4. Step 4: Simplify right side
    547,862.41x = 231,458,020,854.78
  5. Step 5: Solve for x
    x = 231,458,020,854.78/547,862.41
  6. Step 6: Final answer
    x = 422,474.73

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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.