Home / 515,645.23-773,488.83-245,634.58

Finding the Fourth Proportional to 515,645.23, 773,488.83 and 245,634.58

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Solution

The fourth proportional to 515,645.23, 773,488.83 and 245,634.58 is: 368,461.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,645.23 : 773,488.83 = 245,634.58 : x
  2. Step 2: Convert to fraction form
    515,645.23/773,488.83 = 245,634.58/x
  3. Step 3: Cross multiply
    515,645.23x = 773,488.83 × 245,634.58
  4. Step 4: Simplify right side
    515,645.23x = 189,995,603,891.74
  5. Step 5: Solve for x
    x = 189,995,603,891.74/515,645.23
  6. Step 6: Final answer
    x = 368,461.87

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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.