Home / 380,705.23-571,036.77-127,959.56

Finding the Fourth Proportional to 380,705.23, 571,036.77 and 127,959.56

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Solution

The fourth proportional to 380,705.23, 571,036.77 and 127,959.56 is: 191,932.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,705.23 : 571,036.77 = 127,959.56 : x
  2. Step 2: Convert to fraction form
    380,705.23/571,036.77 = 127,959.56/x
  3. Step 3: Cross multiply
    380,705.23x = 571,036.77 × 127,959.56
  4. Step 4: Simplify right side
    380,705.23x = 73,069,613,833.02
  5. Step 5: Solve for x
    x = 73,069,613,833.02/380,705.23
  6. Step 6: Final answer
    x = 191,932.26

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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.