Home / 811,359.26-1,119,600.64-448,775.32

Finding the Fourth Proportional to 811,359.26, 1,119,600.64 and 448,775.32

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Solution

The fourth proportional to 811,359.26, 1,119,600.64 and 448,775.32 is: 619,268.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,359.26 : 1,119,600.64 = 448,775.32 : x
  2. Step 2: Convert to fraction form
    811,359.26/1,119,600.64 = 448,775.32/x
  3. Step 3: Cross multiply
    811,359.26x = 1,119,600.64 × 448,775.32
  4. Step 4: Simplify right side
    811,359.26x = 502,449,131,150.92
  5. Step 5: Solve for x
    x = 502,449,131,150.92/811,359.26
  6. Step 6: Final answer
    x = 619,268.38

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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.