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Finding the Fourth Proportional to 387,598.72, 577,917.08 and 372,800.04

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Solution

The fourth proportional to 387,598.72, 577,917.08 and 372,800.04 is: 555,851.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,598.72 : 577,917.08 = 372,800.04 : x
  2. Step 2: Convert to fraction form
    387,598.72/577,917.08 = 372,800.04/x
  3. Step 3: Cross multiply
    387,598.72x = 577,917.08 × 372,800.04
  4. Step 4: Simplify right side
    387,598.72x = 215,447,510,540.68
  5. Step 5: Solve for x
    x = 215,447,510,540.68/387,598.72
  6. Step 6: Final answer
    x = 555,851.97

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.