Home / 763,174.56-1,053,161.40-419,008.80

Finding the Fourth Proportional to 763,174.56, 1,053,161.40 and 419,008.80

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Solution

The fourth proportional to 763,174.56, 1,053,161.40 and 419,008.80 is: 578,221.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,174.56 : 1,053,161.40 = 419,008.80 : x
  2. Step 2: Convert to fraction form
    763,174.56/1,053,161.40 = 419,008.80/x
  3. Step 3: Cross multiply
    763,174.56x = 1,053,161.40 × 419,008.80
  4. Step 4: Simplify right side
    763,174.56x = 441,283,894,420.32
  5. Step 5: Solve for x
    x = 441,283,894,420.32/763,174.56
  6. Step 6: Final answer
    x = 578,221.44

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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.