Home / 540,162.09-810,480.67-287,383.16

Finding the Fourth Proportional to 540,162.09, 810,480.67 and 287,383.16

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Solution

The fourth proportional to 540,162.09, 810,480.67 and 287,383.16 is: 431,201.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,162.09 : 810,480.67 = 287,383.16 : x
  2. Step 2: Convert to fraction form
    540,162.09/810,480.67 = 287,383.16/x
  3. Step 3: Cross multiply
    540,162.09x = 810,480.67 × 287,383.16
  4. Step 4: Simplify right side
    540,162.09x = 232,918,497,371.26
  5. Step 5: Solve for x
    x = 232,918,497,371.26/540,162.09
  6. Step 6: Final answer
    x = 431,201.12

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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.