Home / 525,939.80-788,106.85-312,286.97

Finding the Fourth Proportional to 525,939.80, 788,106.85 and 312,286.97

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Solution

The fourth proportional to 525,939.80, 788,106.85 and 312,286.97 is: 467,953.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,939.80 : 788,106.85 = 312,286.97 : x
  2. Step 2: Convert to fraction form
    525,939.80/788,106.85 = 312,286.97/x
  3. Step 3: Cross multiply
    525,939.80x = 788,106.85 × 312,286.97
  4. Step 4: Simplify right side
    525,939.80x = 246,115,501,412.29
  5. Step 5: Solve for x
    x = 246,115,501,412.29/525,939.80
  6. Step 6: Final answer
    x = 467,953.75

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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.