Home / 380,674.52-571,064.20-127,974.60

Finding the Fourth Proportional to 380,674.52, 571,064.20 and 127,974.60

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Solution

The fourth proportional to 380,674.52, 571,064.20 and 127,974.60 is: 191,979.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,674.52 : 571,064.20 = 127,974.60 : x
  2. Step 2: Convert to fraction form
    380,674.52/571,064.20 = 127,974.60/x
  3. Step 3: Cross multiply
    380,674.52x = 571,064.20 × 127,974.60
  4. Step 4: Simplify right side
    380,674.52x = 73,081,712,569.32
  5. Step 5: Solve for x
    x = 73,081,712,569.32/380,674.52
  6. Step 6: Final answer
    x = 191,979.52

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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.