Home / 812,799.28-1,121,556.72-468,648.16

Finding the Fourth Proportional to 812,799.28, 1,121,556.72 and 468,648.16

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Solution

The fourth proportional to 812,799.28, 1,121,556.72 and 468,648.16 is: 646,673.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,799.28 : 1,121,556.72 = 468,648.16 : x
  2. Step 2: Convert to fraction form
    812,799.28/1,121,556.72 = 468,648.16/x
  3. Step 3: Cross multiply
    812,799.28x = 1,121,556.72 × 468,648.16
  4. Step 4: Simplify right side
    812,799.28x = 525,615,493,163.64
  5. Step 5: Solve for x
    x = 525,615,493,163.64/812,799.28
  6. Step 6: Final answer
    x = 646,673.18

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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.