Home / 812,305.96-1,121,099.94-468,074.92

Finding the Fourth Proportional to 812,305.96, 1,121,099.94 and 468,074.92

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Solution

The fourth proportional to 812,305.96, 1,121,099.94 and 468,074.92 is: 646,011.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,305.96 : 1,121,099.94 = 468,074.92 : x
  2. Step 2: Convert to fraction form
    812,305.96/1,121,099.94 = 468,074.92/x
  3. Step 3: Cross multiply
    812,305.96x = 1,121,099.94 × 468,074.92
  4. Step 4: Simplify right side
    812,305.96x = 524,758,764,727.51
  5. Step 5: Solve for x
    x = 524,758,764,727.51/812,305.96
  6. Step 6: Final answer
    x = 646,011.22

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Double scale
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Similar ratio
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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.