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Finding the Fourth Proportional to 601,939.98, 830,655 and 330,001.92

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Solution

The fourth proportional to 601,939.98, 830,655 and 330,001.92 is: 455,390.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,939.98 : 830,655 = 330,001.92 : x
  2. Step 2: Convert to fraction form
    601,939.98/830,655 = 330,001.92/x
  3. Step 3: Cross multiply
    601,939.98x = 830,655 × 330,001.92
  4. Step 4: Simplify right side
    601,939.98x = 274,117,744,857.60
  5. Step 5: Solve for x
    x = 274,117,744,857.60/601,939.98
  6. Step 6: Final answer
    x = 455,390.49

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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.