Home / 641,090.47-960,786.28-340,924.72

Finding the Fourth Proportional to 641,090.47, 960,786.28 and 340,924.72

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Solution

The fourth proportional to 641,090.47, 960,786.28 and 340,924.72 is: 510,935.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,090.47 : 960,786.28 = 340,924.72 : x
  2. Step 2: Convert to fraction form
    641,090.47/960,786.28 = 340,924.72/x
  3. Step 3: Cross multiply
    641,090.47x = 960,786.28 × 340,924.72
  4. Step 4: Simplify right side
    641,090.47x = 327,555,793,488.84
  5. Step 5: Solve for x
    x = 327,555,793,488.84/641,090.47
  6. Step 6: Final answer
    x = 510,935.37

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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.