Home / 644,628.96-966,949.20-265,459.68

Finding the Fourth Proportional to 644,628.96, 966,949.20 and 265,459.68

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Solution

The fourth proportional to 644,628.96, 966,949.20 and 265,459.68 is: 398,191.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,628.96 : 966,949.20 = 265,459.68 : x
  2. Step 2: Convert to fraction form
    644,628.96/966,949.20 = 265,459.68/x
  3. Step 3: Cross multiply
    644,628.96x = 966,949.20 × 265,459.68
  4. Step 4: Simplify right side
    644,628.96x = 256,686,025,208.26
  5. Step 5: Solve for x
    x = 256,686,025,208.26/644,628.96
  6. Step 6: Final answer
    x = 398,191.89

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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.