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Finding the Fourth Proportional to 577,955.05, 797,578.65 and 319,842.68

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Solution

The fourth proportional to 577,955.05, 797,578.65 and 319,842.68 is: 441,383.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,955.05 : 797,578.65 = 319,842.68 : x
  2. Step 2: Convert to fraction form
    577,955.05/797,578.65 = 319,842.68/x
  3. Step 3: Cross multiply
    577,955.05x = 797,578.65 × 319,842.68
  4. Step 4: Simplify right side
    577,955.05x = 255,099,688,938.89
  5. Step 5: Solve for x
    x = 255,099,688,938.89/577,955.05
  6. Step 6: Final answer
    x = 441,383.27

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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.