Home / 427,109.58-589,559.64-245,893.72

Finding the Fourth Proportional to 427,109.58, 589,559.64 and 245,893.72

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Solution

The fourth proportional to 427,109.58, 589,559.64 and 245,893.72 is: 339,418.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,109.58 : 589,559.64 = 245,893.72 : x
  2. Step 2: Convert to fraction form
    427,109.58/589,559.64 = 245,893.72/x
  3. Step 3: Cross multiply
    427,109.58x = 589,559.64 × 245,893.72
  4. Step 4: Simplify right side
    427,109.58x = 144,969,013,041.46
  5. Step 5: Solve for x
    x = 144,969,013,041.46/427,109.58
  6. Step 6: Final answer
    x = 339,418.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.