Home / 380,579.48-570,935.20-127,884.64

Finding the Fourth Proportional to 380,579.48, 570,935.20 and 127,884.64

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Solution

The fourth proportional to 380,579.48, 570,935.20 and 127,884.64 is: 191,849.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,579.48 : 570,935.20 = 127,884.64 : x
  2. Step 2: Convert to fraction form
    380,579.48/570,935.20 = 127,884.64/x
  3. Step 3: Cross multiply
    380,579.48x = 570,935.20 × 127,884.64
  4. Step 4: Simplify right side
    380,579.48x = 73,013,842,515.33
  5. Step 5: Solve for x
    x = 73,013,842,515.33/380,579.48
  6. Step 6: Final answer
    x = 191,849.13

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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.