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Finding the Fourth Proportional to 574,257.96, 792,468 and 319,609.20

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Solution

The fourth proportional to 574,257.96, 792,468 and 319,609.20 is: 441,056.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,257.96 : 792,468 = 319,609.20 : x
  2. Step 2: Convert to fraction form
    574,257.96/792,468 = 319,609.20/x
  3. Step 3: Cross multiply
    574,257.96x = 792,468 × 319,609.20
  4. Step 4: Simplify right side
    574,257.96x = 253,280,063,505.60
  5. Step 5: Solve for x
    x = 253,280,063,505.60/574,257.96
  6. Step 6: Final answer
    x = 441,056.25

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1.5x scale

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.