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Finding the Fourth Proportional to 489,037.20, 732,864.60 and 301,491.60

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Solution

The fourth proportional to 489,037.20, 732,864.60 and 301,491.60 is: 451,811.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,037.20 : 732,864.60 = 301,491.60 : x
  2. Step 2: Convert to fraction form
    489,037.20/732,864.60 = 301,491.60/x
  3. Step 3: Cross multiply
    489,037.20x = 732,864.60 × 301,491.60
  4. Step 4: Simplify right side
    489,037.20x = 220,952,520,837.36
  5. Step 5: Solve for x
    x = 220,952,520,837.36/489,037.20
  6. Step 6: Final answer
    x = 451,811.27

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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.