Home / 918,015.66-1,266,861.72-510,105.54

Finding the Fourth Proportional to 918,015.66, 1,266,861.72 and 510,105.54

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Solution

The fourth proportional to 918,015.66, 1,266,861.72 and 510,105.54 is: 703,945.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,015.66 : 1,266,861.72 = 510,105.54 : x
  2. Step 2: Convert to fraction form
    918,015.66/1,266,861.72 = 510,105.54/x
  3. Step 3: Cross multiply
    918,015.66x = 1,266,861.72 × 510,105.54
  4. Step 4: Simplify right side
    918,015.66x = 646,233,181,785.93
  5. Step 5: Solve for x
    x = 646,233,181,785.93/918,015.66
  6. Step 6: Final answer
    x = 703,945.71

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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.