Home / 721,864.98-1,082,424.06-316,891.44

Finding the Fourth Proportional to 721,864.98, 1,082,424.06 and 316,891.44

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Solution

The fourth proportional to 721,864.98, 1,082,424.06 and 316,891.44 is: 475,173.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,864.98 : 1,082,424.06 = 316,891.44 : x
  2. Step 2: Convert to fraction form
    721,864.98/1,082,424.06 = 316,891.44/x
  3. Step 3: Cross multiply
    721,864.98x = 1,082,424.06 × 316,891.44
  4. Step 4: Simplify right side
    721,864.98x = 343,010,919,064.05
  5. Step 5: Solve for x
    x = 343,010,919,064.05/721,864.98
  6. Step 6: Final answer
    x = 475,173.24

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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.