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Finding the Fourth Proportional to 606,487.80, 909,731.70 and 488,389.80

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Solution

The fourth proportional to 606,487.80, 909,731.70 and 488,389.80 is: 732,584.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,487.80 : 909,731.70 = 488,389.80 : x
  2. Step 2: Convert to fraction form
    606,487.80/909,731.70 = 488,389.80/x
  3. Step 3: Cross multiply
    606,487.80x = 909,731.70 × 488,389.80
  4. Step 4: Simplify right side
    606,487.80x = 444,303,683,016.66
  5. Step 5: Solve for x
    x = 444,303,683,016.66/606,487.80
  6. Step 6: Final answer
    x = 732,584.70

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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.