Home / 1,272,032.89-1,908,039.61-325,402.09

Finding the Fourth Proportional to 1,272,032.89, 1,908,039.61 and 325,402.09

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Solution

The fourth proportional to 1,272,032.89, 1,908,039.61 and 325,402.09 is: 488,100.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,032.89 : 1,908,039.61 = 325,402.09 : x
  2. Step 2: Convert to fraction form
    1,272,032.89/1,908,039.61 = 325,402.09/x
  3. Step 3: Cross multiply
    1,272,032.89x = 1,908,039.61 × 325,402.09
  4. Step 4: Simplify right side
    1,272,032.89x = 620,880,076,896.79
  5. Step 5: Solve for x
    x = 620,880,076,896.79/1,272,032.89
  6. Step 6: Final answer
    x = 488,100.65

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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.