Home / 858,001.79-1,287,341.67-325,664.12

Finding the Fourth Proportional to 858,001.79, 1,287,341.67 and 325,664.12

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Solution

The fourth proportional to 858,001.79, 1,287,341.67 and 325,664.12 is: 488,624.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,001.79 : 1,287,341.67 = 325,664.12 : x
  2. Step 2: Convert to fraction form
    858,001.79/1,287,341.67 = 325,664.12/x
  3. Step 3: Cross multiply
    858,001.79x = 1,287,341.67 × 325,664.12
  4. Step 4: Simplify right side
    858,001.79x = 419,240,992,099.88
  5. Step 5: Solve for x
    x = 419,240,992,099.88/858,001.79
  6. Step 6: Final answer
    x = 488,624.85

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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.