Home / 479,971.83-719,999.09-124,986.50

Finding the Fourth Proportional to 479,971.83, 719,999.09 and 124,986.50

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Solution

The fourth proportional to 479,971.83, 719,999.09 and 124,986.50 is: 187,490.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,971.83 : 719,999.09 = 124,986.50 : x
  2. Step 2: Convert to fraction form
    479,971.83/719,999.09 = 124,986.50/x
  3. Step 3: Cross multiply
    479,971.83x = 719,999.09 × 124,986.50
  4. Step 4: Simplify right side
    479,971.83x = 89,990,166,262.29
  5. Step 5: Solve for x
    x = 89,990,166,262.29/479,971.83
  6. Step 6: Final answer
    x = 187,490.52

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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.