Home / 902,743.12-1,245,754.92-520,760.08

Finding the Fourth Proportional to 902,743.12, 1,245,754.92 and 520,760.08

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Solution

The fourth proportional to 902,743.12, 1,245,754.92 and 520,760.08 is: 718,631.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,743.12 : 1,245,754.92 = 520,760.08 : x
  2. Step 2: Convert to fraction form
    902,743.12/1,245,754.92 = 520,760.08/x
  3. Step 3: Cross multiply
    902,743.12x = 1,245,754.92 × 520,760.08
  4. Step 4: Simplify right side
    902,743.12x = 648,739,431,799.59
  5. Step 5: Solve for x
    x = 648,739,431,799.59/902,743.12
  6. Step 6: Final answer
    x = 718,631.27

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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.