Home / 440,704.03-661,056.26-290,909.31

Finding the Fourth Proportional to 440,704.03, 661,056.26 and 290,909.31

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Solution

The fourth proportional to 440,704.03, 661,056.26 and 290,909.31 is: 436,364.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,704.03 : 661,056.26 = 290,909.31 : x
  2. Step 2: Convert to fraction form
    440,704.03/661,056.26 = 290,909.31/x
  3. Step 3: Cross multiply
    440,704.03x = 661,056.26 × 290,909.31
  4. Step 4: Simplify right side
    440,704.03x = 192,307,418,815.14
  5. Step 5: Solve for x
    x = 192,307,418,815.14/440,704.03
  6. Step 6: Final answer
    x = 436,364.11

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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.