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Finding the Fourth Proportional to 544,590, 751,534.20 and 306,126

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Solution

The fourth proportional to 544,590, 751,534.20 and 306,126 is: 422,453.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,590 : 751,534.20 = 306,126 : x
  2. Step 2: Convert to fraction form
    544,590/751,534.20 = 306,126/x
  3. Step 3: Cross multiply
    544,590x = 751,534.20 × 306,126
  4. Step 4: Simplify right side
    544,590x = 230,064,158,509.20
  5. Step 5: Solve for x
    x = 230,064,158,509.20/544,590
  6. Step 6: Final answer
    x = 422,453.88

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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.