Home / 800,402.85-1,201,449.31-782,330.94

Finding the Fourth Proportional to 800,402.85, 1,201,449.31 and 782,330.94

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Solution

The fourth proportional to 800,402.85, 1,201,449.31 and 782,330.94 is: 1,174,322.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,402.85 : 1,201,449.31 = 782,330.94 : x
  2. Step 2: Convert to fraction form
    800,402.85/1,201,449.31 = 782,330.94/x
  3. Step 3: Cross multiply
    800,402.85x = 1,201,449.31 × 782,330.94
  4. Step 4: Simplify right side
    800,402.85x = 939,930,966,098.82
  5. Step 5: Solve for x
    x = 939,930,966,098.82/800,402.85
  6. Step 6: Final answer
    x = 1,174,322.36

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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.