Home / 1,054,421.88-1,581,305.69-380,415.56

Finding the Fourth Proportional to 1,054,421.88, 1,581,305.69 and 380,415.56

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Solution

The fourth proportional to 1,054,421.88, 1,581,305.69 and 380,415.56 is: 570,505.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054,421.88 : 1,581,305.69 = 380,415.56 : x
  2. Step 2: Convert to fraction form
    1,054,421.88/1,581,305.69 = 380,415.56/x
  3. Step 3: Cross multiply
    1,054,421.88x = 1,581,305.69 × 380,415.56
  4. Step 4: Simplify right side
    1,054,421.88x = 601,553,289,592.54
  5. Step 5: Solve for x
    x = 601,553,289,592.54/1,054,421.88
  6. Step 6: Final answer
    x = 570,505.32

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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.