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Finding the Fourth Proportional to 604,328.90, 905,509.20 and 444,896.60

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Solution

The fourth proportional to 604,328.90, 905,509.20 and 444,896.60 is: 666,620.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,328.90 : 905,509.20 = 444,896.60 : x
  2. Step 2: Convert to fraction form
    604,328.90/905,509.20 = 444,896.60/x
  3. Step 3: Cross multiply
    604,328.90x = 905,509.20 × 444,896.60
  4. Step 4: Simplify right side
    604,328.90x = 402,857,964,348.72
  5. Step 5: Solve for x
    x = 402,857,964,348.72/604,328.90
  6. Step 6: Final answer
    x = 666,620.39

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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.