Home / 855,353.46-1,180,682.82-492,921.75

Finding the Fourth Proportional to 855,353.46, 1,180,682.82 and 492,921.75

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Solution

The fourth proportional to 855,353.46, 1,180,682.82 and 492,921.75 is: 680,402.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,353.46 : 1,180,682.82 = 492,921.75 : x
  2. Step 2: Convert to fraction form
    855,353.46/1,180,682.82 = 492,921.75/x
  3. Step 3: Cross multiply
    855,353.46x = 1,180,682.82 × 492,921.75
  4. Step 4: Simplify right side
    855,353.46x = 581,984,241,829.34
  5. Step 5: Solve for x
    x = 581,984,241,829.34/855,353.46
  6. Step 6: Final answer
    x = 680,402.04

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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.