Home / 786,087.21-1,179,072.48-280,590.51

Finding the Fourth Proportional to 786,087.21, 1,179,072.48 and 280,590.51

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Solution

The fourth proportional to 786,087.21, 1,179,072.48 and 280,590.51 is: 420,864.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,087.21 : 1,179,072.48 = 280,590.51 : x
  2. Step 2: Convert to fraction form
    786,087.21/1,179,072.48 = 280,590.51/x
  3. Step 3: Cross multiply
    786,087.21x = 1,179,072.48 × 280,590.51
  4. Step 4: Simplify right side
    786,087.21x = 330,836,548,490.17
  5. Step 5: Solve for x
    x = 330,836,548,490.17/786,087.21
  6. Step 6: Final answer
    x = 420,864.94

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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.