Home / 1,145,099.86-1,580,432.18-661,945.09

Finding the Fourth Proportional to 1,145,099.86, 1,580,432.18 and 661,945.09

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Solution

The fourth proportional to 1,145,099.86, 1,580,432.18 and 661,945.09 is: 913,596.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,099.86 : 1,580,432.18 = 661,945.09 : x
  2. Step 2: Convert to fraction form
    1,145,099.86/1,580,432.18 = 661,945.09/x
  3. Step 3: Cross multiply
    1,145,099.86x = 1,580,432.18 × 661,945.09
  4. Step 4: Simplify right side
    1,145,099.86x = 1,046,159,321,629.00
  5. Step 5: Solve for x
    x = 1,046,159,321,629.00/1,145,099.86
  6. Step 6: Final answer
    x = 913,596.59

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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.