Home / 885,135.96-1,221,485.40-482,727.96

Finding the Fourth Proportional to 885,135.96, 1,221,485.40 and 482,727.96

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Solution

The fourth proportional to 885,135.96, 1,221,485.40 and 482,727.96 is: 666,163.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,135.96 : 1,221,485.40 = 482,727.96 : x
  2. Step 2: Convert to fraction form
    885,135.96/1,221,485.40 = 482,727.96/x
  3. Step 3: Cross multiply
    885,135.96x = 1,221,485.40 × 482,727.96
  4. Step 4: Simplify right side
    885,135.96x = 589,645,155,311.78
  5. Step 5: Solve for x
    x = 589,645,155,311.78/885,135.96
  6. Step 6: Final answer
    x = 666,163.37

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Double scale
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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.