Home / 684,837.70-1,027,256.55-667,341.70

Finding the Fourth Proportional to 684,837.70, 1,027,256.55 and 667,341.70

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Solution

The fourth proportional to 684,837.70, 1,027,256.55 and 667,341.70 is: 1,001,012.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,837.70 : 1,027,256.55 = 667,341.70 : x
  2. Step 2: Convert to fraction form
    684,837.70/1,027,256.55 = 667,341.70/x
  3. Step 3: Cross multiply
    684,837.70x = 1,027,256.55 × 667,341.70
  4. Step 4: Simplify right side
    684,837.70x = 685,531,132,413.14
  5. Step 5: Solve for x
    x = 685,531,132,413.14/684,837.70
  6. Step 6: Final answer
    x = 1,001,012.55

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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.