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Finding the Fourth Proportional to 619,525.55, 854,999.36 and 361,485.63

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Solution

The fourth proportional to 619,525.55, 854,999.36 and 361,485.63 is: 498,881.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,525.55 : 854,999.36 = 361,485.63 : x
  2. Step 2: Convert to fraction form
    619,525.55/854,999.36 = 361,485.63/x
  3. Step 3: Cross multiply
    619,525.55x = 854,999.36 × 361,485.63
  4. Step 4: Simplify right side
    619,525.55x = 309,069,985,083.04
  5. Step 5: Solve for x
    x = 309,069,985,083.04/619,525.55
  6. Step 6: Final answer
    x = 498,881.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.