Home / 516,128.35-712,268.40-283,558.29

Finding the Fourth Proportional to 516,128.35, 712,268.40 and 283,558.29

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Solution

The fourth proportional to 516,128.35, 712,268.40 and 283,558.29 is: 391,316.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,128.35 : 712,268.40 = 283,558.29 : x
  2. Step 2: Convert to fraction form
    516,128.35/712,268.40 = 283,558.29/x
  3. Step 3: Cross multiply
    516,128.35x = 712,268.40 × 283,558.29
  4. Step 4: Simplify right side
    516,128.35x = 201,969,605,963.69
  5. Step 5: Solve for x
    x = 201,969,605,963.69/516,128.35
  6. Step 6: Final answer
    x = 391,316.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.