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Finding the Fourth Proportional to 488,110.60, 732,603.30 and 421,625.80

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Solution

The fourth proportional to 488,110.60, 732,603.30 and 421,625.80 is: 632,816.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,110.60 : 732,603.30 = 421,625.80 : x
  2. Step 2: Convert to fraction form
    488,110.60/732,603.30 = 421,625.80/x
  3. Step 3: Cross multiply
    488,110.60x = 732,603.30 × 421,625.80
  4. Step 4: Simplify right side
    488,110.60x = 308,884,452,445.14
  5. Step 5: Solve for x
    x = 308,884,452,445.14/488,110.60
  6. Step 6: Final answer
    x = 632,816.52

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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.