Home / 1,115,290.52-1,670,690.46-515,425.58

Finding the Fourth Proportional to 1,115,290.52, 1,670,690.46 and 515,425.58

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Solution

The fourth proportional to 1,115,290.52, 1,670,690.46 and 515,425.58 is: 772,100.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,290.52 : 1,670,690.46 = 515,425.58 : x
  2. Step 2: Convert to fraction form
    1,115,290.52/1,670,690.46 = 515,425.58/x
  3. Step 3: Cross multiply
    1,115,290.52x = 1,670,690.46 × 515,425.58
  4. Step 4: Simplify right side
    1,115,290.52x = 861,116,599,345.97
  5. Step 5: Solve for x
    x = 861,116,599,345.97/1,115,290.52
  6. Step 6: Final answer
    x = 772,100.71

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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.