Home / 1,428,005.20-2,142,012.82-363,047.37

Finding the Fourth Proportional to 1,428,005.20, 2,142,012.82 and 363,047.37

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Solution

The fourth proportional to 1,428,005.20, 2,142,012.82 and 363,047.37 is: 544,572.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,005.20 : 2,142,012.82 = 363,047.37 : x
  2. Step 2: Convert to fraction form
    1,428,005.20/2,142,012.82 = 363,047.37/x
  3. Step 3: Cross multiply
    1,428,005.20x = 2,142,012.82 × 363,047.37
  4. Step 4: Simplify right side
    1,428,005.20x = 777,652,129,089.44
  5. Step 5: Solve for x
    x = 777,652,129,089.44/1,428,005.20
  6. Step 6: Final answer
    x = 544,572.34

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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.