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Finding the Fourth Proportional to 573,727.89, 791,763.75 and 315,615.72

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Solution

The fourth proportional to 573,727.89, 791,763.75 and 315,615.72 is: 435,560.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,727.89 : 791,763.75 = 315,615.72 : x
  2. Step 2: Convert to fraction form
    573,727.89/791,763.75 = 315,615.72/x
  3. Step 3: Cross multiply
    573,727.89x = 791,763.75 × 315,615.72
  4. Step 4: Simplify right side
    573,727.89x = 249,893,086,026.15
  5. Step 5: Solve for x
    x = 249,893,086,026.15/573,727.89
  6. Step 6: Final answer
    x = 435,560.29

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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.