Home / 985,665.46-1,478,272.20-275,765.26

Finding the Fourth Proportional to 985,665.46, 1,478,272.20 and 275,765.26

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Solution

The fourth proportional to 985,665.46, 1,478,272.20 and 275,765.26 is: 413,584.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,665.46 : 1,478,272.20 = 275,765.26 : x
  2. Step 2: Convert to fraction form
    985,665.46/1,478,272.20 = 275,765.26/x
  3. Step 3: Cross multiply
    985,665.46x = 1,478,272.20 × 275,765.26
  4. Step 4: Simplify right side
    985,665.46x = 407,656,117,583.77
  5. Step 5: Solve for x
    x = 407,656,117,583.77/985,665.46
  6. Step 6: Final answer
    x = 413,584.66

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.