Home / 821,904.52-1,232,979.32-253,238.05

Finding the Fourth Proportional to 821,904.52, 1,232,979.32 and 253,238.05

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Solution

The fourth proportional to 821,904.52, 1,232,979.32 and 253,238.05 is: 379,894.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,904.52 : 1,232,979.32 = 253,238.05 : x
  2. Step 2: Convert to fraction form
    821,904.52/1,232,979.32 = 253,238.05/x
  3. Step 3: Cross multiply
    821,904.52x = 1,232,979.32 × 253,238.05
  4. Step 4: Simplify right side
    821,904.52x = 312,237,272,501.47
  5. Step 5: Solve for x
    x = 312,237,272,501.47/821,904.52
  6. Step 6: Final answer
    x = 379,894.82

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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.