Home / 763,813.03-1,054,079.57-419,670.44

Finding the Fourth Proportional to 763,813.03, 1,054,079.57 and 419,670.44

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Solution

The fourth proportional to 763,813.03, 1,054,079.57 and 419,670.44 is: 579,154.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,813.03 : 1,054,079.57 = 419,670.44 : x
  2. Step 2: Convert to fraction form
    763,813.03/1,054,079.57 = 419,670.44/x
  3. Step 3: Cross multiply
    763,813.03x = 1,054,079.57 × 419,670.44
  4. Step 4: Simplify right side
    763,813.03x = 442,366,040,621.29
  5. Step 5: Solve for x
    x = 442,366,040,621.29/763,813.03
  6. Step 6: Final answer
    x = 579,154.88

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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.