Home / 763,308.36-1,053,375.84-419,162.04

Finding the Fourth Proportional to 763,308.36, 1,053,375.84 and 419,162.04

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Solution

The fourth proportional to 763,308.36, 1,053,375.84 and 419,162.04 is: 578,449.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,308.36 : 1,053,375.84 = 419,162.04 : x
  2. Step 2: Convert to fraction form
    763,308.36/1,053,375.84 = 419,162.04/x
  3. Step 3: Cross multiply
    763,308.36x = 1,053,375.84 × 419,162.04
  4. Step 4: Simplify right side
    763,308.36x = 441,535,165,981.11
  5. Step 5: Solve for x
    x = 441,535,165,981.11/763,308.36
  6. Step 6: Final answer
    x = 578,449.27

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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.