Home / 877,512.38-1,316,268.56-212,664.38

Finding the Fourth Proportional to 877,512.38, 1,316,268.56 and 212,664.38

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Solution

The fourth proportional to 877,512.38, 1,316,268.56 and 212,664.38 is: 318,996.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,512.38 : 1,316,268.56 = 212,664.38 : x
  2. Step 2: Convert to fraction form
    877,512.38/1,316,268.56 = 212,664.38/x
  3. Step 3: Cross multiply
    877,512.38x = 1,316,268.56 × 212,664.38
  4. Step 4: Simplify right side
    877,512.38x = 279,923,431,176.21
  5. Step 5: Solve for x
    x = 279,923,431,176.21/877,512.38
  6. Step 6: Final answer
    x = 318,996.56

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Similar ratio
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1.5x scale

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.