Home / 821,077.56-1,133,076.33-458,507.79

Finding the Fourth Proportional to 821,077.56, 1,133,076.33 and 458,507.79

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Solution

The fourth proportional to 821,077.56, 1,133,076.33 and 458,507.79 is: 632,734.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,077.56 : 1,133,076.33 = 458,507.79 : x
  2. Step 2: Convert to fraction form
    821,077.56/1,133,076.33 = 458,507.79/x
  3. Step 3: Cross multiply
    821,077.56x = 1,133,076.33 × 458,507.79
  4. Step 4: Simplify right side
    821,077.56x = 519,524,323,969.61
  5. Step 5: Solve for x
    x = 519,524,323,969.61/821,077.56
  6. Step 6: Final answer
    x = 632,734.77

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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.