Home / 930,665.28-1,284,268.77-522,784.31

Finding the Fourth Proportional to 930,665.28, 1,284,268.77 and 522,784.31

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Solution

The fourth proportional to 930,665.28, 1,284,268.77 and 522,784.31 is: 721,414.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,665.28 : 1,284,268.77 = 522,784.31 : x
  2. Step 2: Convert to fraction form
    930,665.28/1,284,268.77 = 522,784.31/x
  3. Step 3: Cross multiply
    930,665.28x = 1,284,268.77 × 522,784.31
  4. Step 4: Simplify right side
    930,665.28x = 671,395,556,357.66
  5. Step 5: Solve for x
    x = 671,395,556,357.66/930,665.28
  6. Step 6: Final answer
    x = 721,414.64

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1.5x scale

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.