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Finding the Fourth Proportional to 479,548.65, 661,678.34 and 275,560.16

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Solution

The fourth proportional to 479,548.65, 661,678.34 and 275,560.16 is: 380,216.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,548.65 : 661,678.34 = 275,560.16 : x
  2. Step 2: Convert to fraction form
    479,548.65/661,678.34 = 275,560.16/x
  3. Step 3: Cross multiply
    479,548.65x = 661,678.34 × 275,560.16
  4. Step 4: Simplify right side
    479,548.65x = 182,332,189,238.93
  5. Step 5: Solve for x
    x = 182,332,189,238.93/479,548.65
  6. Step 6: Final answer
    x = 380,216.25

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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.