Home / 765,152.07-1,055,917.94-420,992.52

Finding the Fourth Proportional to 765,152.07, 1,055,917.94 and 420,992.52

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Solution

The fourth proportional to 765,152.07, 1,055,917.94 and 420,992.52 is: 580,974.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,152.07 : 1,055,917.94 = 420,992.52 : x
  2. Step 2: Convert to fraction form
    765,152.07/1,055,917.94 = 420,992.52/x
  3. Step 3: Cross multiply
    765,152.07x = 1,055,917.94 × 420,992.52
  4. Step 4: Simplify right side
    765,152.07x = 444,533,552,368.85
  5. Step 5: Solve for x
    x = 444,533,552,368.85/765,152.07
  6. Step 6: Final answer
    x = 580,974.12

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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.