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Finding the Fourth Proportional to 547,877.54, 756,146.04 and 315,299.54

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Solution

The fourth proportional to 547,877.54, 756,146.04 and 315,299.54 is: 435,156.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,877.54 : 756,146.04 = 315,299.54 : x
  2. Step 2: Convert to fraction form
    547,877.54/756,146.04 = 315,299.54/x
  3. Step 3: Cross multiply
    547,877.54x = 756,146.04 × 315,299.54
  4. Step 4: Simplify right side
    547,877.54x = 238,412,498,584.82
  5. Step 5: Solve for x
    x = 238,412,498,584.82/547,877.54
  6. Step 6: Final answer
    x = 435,156.55

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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.