Home / 825,837.38-1,139,421.28-481,688.32

Finding the Fourth Proportional to 825,837.38, 1,139,421.28 and 481,688.32

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Solution

The fourth proportional to 825,837.38, 1,139,421.28 and 481,688.32 is: 664,593.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,837.38 : 1,139,421.28 = 481,688.32 : x
  2. Step 2: Convert to fraction form
    825,837.38/1,139,421.28 = 481,688.32/x
  3. Step 3: Cross multiply
    825,837.38x = 1,139,421.28 × 481,688.32
  4. Step 4: Simplify right side
    825,837.38x = 548,845,922,135.45
  5. Step 5: Solve for x
    x = 548,845,922,135.45/825,837.38
  6. Step 6: Final answer
    x = 664,593.22

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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.