Home / 1,021,470.21-1,531,317.56-515,609.82

Finding the Fourth Proportional to 1,021,470.21, 1,531,317.56 and 515,609.82

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Solution

The fourth proportional to 1,021,470.21, 1,531,317.56 and 515,609.82 is: 772,966.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,470.21 : 1,531,317.56 = 515,609.82 : x
  2. Step 2: Convert to fraction form
    1,021,470.21/1,531,317.56 = 515,609.82/x
  3. Step 3: Cross multiply
    1,021,470.21x = 1,531,317.56 × 515,609.82
  4. Step 4: Simplify right side
    1,021,470.21x = 789,562,368,896.39
  5. Step 5: Solve for x
    x = 789,562,368,896.39/1,021,470.21
  6. Step 6: Final answer
    x = 772,966.61

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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.