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Finding the Fourth Proportional to 721,541.63, 995,659.65 and 488,494.52

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Solution

The fourth proportional to 721,541.63, 995,659.65 and 488,494.52 is: 674,076.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,541.63 : 995,659.65 = 488,494.52 : x
  2. Step 2: Convert to fraction form
    721,541.63/995,659.65 = 488,494.52/x
  3. Step 3: Cross multiply
    721,541.63x = 995,659.65 × 488,494.52
  4. Step 4: Simplify right side
    721,541.63x = 486,374,277,831.82
  5. Step 5: Solve for x
    x = 486,374,277,831.82/721,541.63
  6. Step 6: Final answer
    x = 674,076.53

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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.