Home / 791,376.80-1,092,120.32-485,622.12

Finding the Fourth Proportional to 791,376.80, 1,092,120.32 and 485,622.12

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Solution

The fourth proportional to 791,376.80, 1,092,120.32 and 485,622.12 is: 670,171.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,376.80 : 1,092,120.32 = 485,622.12 : x
  2. Step 2: Convert to fraction form
    791,376.80/1,092,120.32 = 485,622.12/x
  3. Step 3: Cross multiply
    791,376.80x = 1,092,120.32 × 485,622.12
  4. Step 4: Simplify right side
    791,376.80x = 530,357,782,665.37
  5. Step 5: Solve for x
    x = 530,357,782,665.37/791,376.80
  6. Step 6: Final answer
    x = 670,171.01

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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.