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Finding the Fourth Proportional to 488,648.54, 732,944.72 and 290,229.26

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Solution

The fourth proportional to 488,648.54, 732,944.72 and 290,229.26 is: 435,327.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,648.54 : 732,944.72 = 290,229.26 : x
  2. Step 2: Convert to fraction form
    488,648.54/732,944.72 = 290,229.26/x
  3. Step 3: Cross multiply
    488,648.54x = 732,944.72 × 290,229.26
  4. Step 4: Simplify right side
    488,648.54x = 212,722,003,706.51
  5. Step 5: Solve for x
    x = 212,722,003,706.51/488,648.54
  6. Step 6: Final answer
    x = 435,327.21

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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.