Home / 1,292,571.80-1,939,743.38-451,123.56

Finding the Fourth Proportional to 1,292,571.80, 1,939,743.38 and 451,123.56

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Solution

The fourth proportional to 1,292,571.80, 1,939,743.38 and 451,123.56 is: 676,994.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,571.80 : 1,939,743.38 = 451,123.56 : x
  2. Step 2: Convert to fraction form
    1,292,571.80/1,939,743.38 = 451,123.56/x
  3. Step 3: Cross multiply
    1,292,571.80x = 1,939,743.38 × 451,123.56
  4. Step 4: Simplify right side
    1,292,571.80x = 875,063,939,072.03
  5. Step 5: Solve for x
    x = 875,063,939,072.03/1,292,571.80
  6. Step 6: Final answer
    x = 676,994.45

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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.