Home / 1,054,421.38-1,581,304.94-380,415.06

Finding the Fourth Proportional to 1,054,421.38, 1,581,304.94 and 380,415.06

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Solution

The fourth proportional to 1,054,421.38, 1,581,304.94 and 380,415.06 is: 570,504.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054,421.38 : 1,581,304.94 = 380,415.06 : x
  2. Step 2: Convert to fraction form
    1,054,421.38/1,581,304.94 = 380,415.06/x
  3. Step 3: Cross multiply
    1,054,421.38x = 1,581,304.94 × 380,415.06
  4. Step 4: Simplify right side
    1,054,421.38x = 601,552,213,628.40
  5. Step 5: Solve for x
    x = 601,552,213,628.40/1,054,421.38
  6. Step 6: Final answer
    x = 570,504.57

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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.