Home / 727,091.14-1,003,415.17-421,162.65

Finding the Fourth Proportional to 727,091.14, 1,003,415.17 and 421,162.65

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Solution

The fourth proportional to 727,091.14, 1,003,415.17 and 421,162.65 is: 581,221.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,091.14 : 1,003,415.17 = 421,162.65 : x
  2. Step 2: Convert to fraction form
    727,091.14/1,003,415.17 = 421,162.65/x
  3. Step 3: Cross multiply
    727,091.14x = 1,003,415.17 × 421,162.65
  4. Step 4: Simplify right side
    727,091.14x = 422,600,992,047.40
  5. Step 5: Solve for x
    x = 422,600,992,047.40/727,091.14
  6. Step 6: Final answer
    x = 581,221.48

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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.