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Finding the Fourth Proportional to 802,363.76, 1,107,375.39 and 496,538.64

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Solution

The fourth proportional to 802,363.76, 1,107,375.39 and 496,538.64 is: 685,293.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,363.76 : 1,107,375.39 = 496,538.64 : x
  2. Step 2: Convert to fraction form
    802,363.76/1,107,375.39 = 496,538.64/x
  3. Step 3: Cross multiply
    802,363.76x = 1,107,375.39 × 496,538.64
  4. Step 4: Simplify right side
    802,363.76x = 549,854,670,120.07
  5. Step 5: Solve for x
    x = 549,854,670,120.07/802,363.76
  6. Step 6: Final answer
    x = 685,293.51

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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.