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Finding the Fourth Proportional to 545,628.12, 752,984.76 and 300,599.88

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Solution

The fourth proportional to 545,628.12, 752,984.76 and 300,599.88 is: 414,837.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,628.12 : 752,984.76 = 300,599.88 : x
  2. Step 2: Convert to fraction form
    545,628.12/752,984.76 = 300,599.88/x
  3. Step 3: Cross multiply
    545,628.12x = 752,984.76 × 300,599.88
  4. Step 4: Simplify right side
    545,628.12x = 226,347,128,497.83
  5. Step 5: Solve for x
    x = 226,347,128,497.83/545,628.12
  6. Step 6: Final answer
    x = 414,837.73

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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.