Home / 525,913.71-788,427.69-210,198.39

Finding the Fourth Proportional to 525,913.71, 788,427.69 and 210,198.39

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Solution

The fourth proportional to 525,913.71, 788,427.69 and 210,198.39 is: 315,120.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,913.71 : 788,427.69 = 210,198.39 : x
  2. Step 2: Convert to fraction form
    525,913.71/788,427.69 = 210,198.39/x
  3. Step 3: Cross multiply
    525,913.71x = 788,427.69 × 210,198.39
  4. Step 4: Simplify right side
    525,913.71x = 165,726,231,069.42
  5. Step 5: Solve for x
    x = 165,726,231,069.42/525,913.71
  6. Step 6: Final answer
    x = 315,120.58

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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.