Home / 758,555.47-1,137,999.39-285,240.84

Finding the Fourth Proportional to 758,555.47, 1,137,999.39 and 285,240.84

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Solution

The fourth proportional to 758,555.47, 1,137,999.39 and 285,240.84 is: 427,923.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,555.47 : 1,137,999.39 = 285,240.84 : x
  2. Step 2: Convert to fraction form
    758,555.47/1,137,999.39 = 285,240.84/x
  3. Step 3: Cross multiply
    758,555.47x = 1,137,999.39 × 285,240.84
  4. Step 4: Simplify right side
    758,555.47x = 324,603,901,923.09
  5. Step 5: Solve for x
    x = 324,603,901,923.09/758,555.47
  6. Step 6: Final answer
    x = 427,923.75

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1.5x scale

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.