Home / 619,489.22-929,036.93-421,084.58

Finding the Fourth Proportional to 619,489.22, 929,036.93 and 421,084.58

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Solution

The fourth proportional to 619,489.22, 929,036.93 and 421,084.58 is: 631,493.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,489.22 : 929,036.93 = 421,084.58 : x
  2. Step 2: Convert to fraction form
    619,489.22/929,036.93 = 421,084.58/x
  3. Step 3: Cross multiply
    619,489.22x = 929,036.93 × 421,084.58
  4. Step 4: Simplify right side
    619,489.22x = 391,203,118,722.93
  5. Step 5: Solve for x
    x = 391,203,118,722.93/619,489.22
  6. Step 6: Final answer
    x = 631,493.03

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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.