Home / 790,011.24-1,090,749.96-518,540.64

Finding the Fourth Proportional to 790,011.24, 1,090,749.96 and 518,540.64

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Solution

The fourth proportional to 790,011.24, 1,090,749.96 and 518,540.64 is: 715,936.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,011.24 : 1,090,749.96 = 518,540.64 : x
  2. Step 2: Convert to fraction form
    790,011.24/1,090,749.96 = 518,540.64/x
  3. Step 3: Cross multiply
    790,011.24x = 1,090,749.96 × 518,540.64
  4. Step 4: Simplify right side
    790,011.24x = 565,598,182,338.37
  5. Step 5: Solve for x
    x = 565,598,182,338.37/790,011.24
  6. Step 6: Final answer
    x = 715,936.88

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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.