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Finding the Fourth Proportional to 601,390.42, 901,126.06 and 440,721.79

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Solution

The fourth proportional to 601,390.42, 901,126.06 and 440,721.79 is: 660,379.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,390.42 : 901,126.06 = 440,721.79 : x
  2. Step 2: Convert to fraction form
    601,390.42/901,126.06 = 440,721.79/x
  3. Step 3: Cross multiply
    601,390.42x = 901,126.06 × 440,721.79
  4. Step 4: Simplify right side
    601,390.42x = 397,145,890,178.85
  5. Step 5: Solve for x
    x = 397,145,890,178.85/601,390.42
  6. Step 6: Final answer
    x = 660,379.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.