Home / 525,730.40-788,077.20-259,272.80

Finding the Fourth Proportional to 525,730.40, 788,077.20 and 259,272.80

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Solution

The fourth proportional to 525,730.40, 788,077.20 and 259,272.80 is: 388,653.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,730.40 : 788,077.20 = 259,272.80 : x
  2. Step 2: Convert to fraction form
    525,730.40/788,077.20 = 259,272.80/x
  3. Step 3: Cross multiply
    525,730.40x = 788,077.20 × 259,272.80
  4. Step 4: Simplify right side
    525,730.40x = 204,326,982,260.16
  5. Step 5: Solve for x
    x = 204,326,982,260.16/525,730.40
  6. Step 6: Final answer
    x = 388,653.54

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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.