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Finding the Fourth Proportional to 573,540.72, 791,465.52 and 315,415.44

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Solution

The fourth proportional to 573,540.72, 791,465.52 and 315,415.44 is: 435,261.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,540.72 : 791,465.52 = 315,415.44 : x
  2. Step 2: Convert to fraction form
    573,540.72/791,465.52 = 315,415.44/x
  3. Step 3: Cross multiply
    573,540.72x = 791,465.52 × 315,415.44
  4. Step 4: Simplify right side
    573,540.72x = 249,640,445,235.63
  5. Step 5: Solve for x
    x = 249,640,445,235.63/573,540.72
  6. Step 6: Final answer
    x = 435,261.94

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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.