Home / 821,480.39-1,133,602.45-458,832.05

Finding the Fourth Proportional to 821,480.39, 1,133,602.45 and 458,832.05

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Solution

The fourth proportional to 821,480.39, 1,133,602.45 and 458,832.05 is: 633,165.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,480.39 : 1,133,602.45 = 458,832.05 : x
  2. Step 2: Convert to fraction form
    821,480.39/1,133,602.45 = 458,832.05/x
  3. Step 3: Cross multiply
    821,480.39x = 1,133,602.45 × 458,832.05
  4. Step 4: Simplify right side
    821,480.39x = 520,133,129,203.43
  5. Step 5: Solve for x
    x = 520,133,129,203.43/821,480.39
  6. Step 6: Final answer
    x = 633,165.61

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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.