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Finding the Fourth Proportional to 547,848.77, 756,016.79 and 306,133.32

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Solution

The fourth proportional to 547,848.77, 756,016.79 and 306,133.32 is: 422,455.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,848.77 : 756,016.79 = 306,133.32 : x
  2. Step 2: Convert to fraction form
    547,848.77/756,016.79 = 306,133.32/x
  3. Step 3: Cross multiply
    547,848.77x = 756,016.79 × 306,133.32
  4. Step 4: Simplify right side
    547,848.77x = 231,441,930,663.78
  5. Step 5: Solve for x
    x = 231,441,930,663.78/547,848.77
  6. Step 6: Final answer
    x = 422,455.88

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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.