Home / 419,988.64-629,985.50-104,445.58

Finding the Fourth Proportional to 419,988.64, 629,985.50 and 104,445.58

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Solution

The fourth proportional to 419,988.64, 629,985.50 and 104,445.58 is: 156,669.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,988.64 : 629,985.50 = 104,445.58 : x
  2. Step 2: Convert to fraction form
    419,988.64/629,985.50 = 104,445.58/x
  3. Step 3: Cross multiply
    419,988.64x = 629,985.50 × 104,445.58
  4. Step 4: Simplify right side
    419,988.64x = 65,799,200,939.09
  5. Step 5: Solve for x
    x = 65,799,200,939.09/419,988.64
  6. Step 6: Final answer
    x = 156,669.00

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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.