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Finding the Fourth Proportional to 574,455.68, 792,780.24 and 319,801.28

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Solution

The fourth proportional to 574,455.68, 792,780.24 and 319,801.28 is: 441,343.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,455.68 : 792,780.24 = 319,801.28 : x
  2. Step 2: Convert to fraction form
    574,455.68/792,780.24 = 319,801.28/x
  3. Step 3: Cross multiply
    574,455.68x = 792,780.24 × 319,801.28
  4. Step 4: Simplify right side
    574,455.68x = 253,532,135,510.71
  5. Step 5: Solve for x
    x = 253,532,135,510.71/574,455.68
  6. Step 6: Final answer
    x = 441,343.25

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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.