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Finding the Fourth Proportional to 545,681.97, 753,011.91 and 300,659.13

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Solution

The fourth proportional to 545,681.97, 753,011.91 and 300,659.13 is: 414,893.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,681.97 : 753,011.91 = 300,659.13 : x
  2. Step 2: Convert to fraction form
    545,681.97/753,011.91 = 300,659.13/x
  3. Step 3: Cross multiply
    545,681.97x = 753,011.91 × 300,659.13
  4. Step 4: Simplify right side
    545,681.97x = 226,399,905,740.24
  5. Step 5: Solve for x
    x = 226,399,905,740.24/545,681.97
  6. Step 6: Final answer
    x = 414,893.51

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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.