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Finding the Fourth Proportional to 573,417.36, 791,336.25 and 315,313.97

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Solution

The fourth proportional to 573,417.36, 791,336.25 and 315,313.97 is: 435,144.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,417.36 : 791,336.25 = 315,313.97 : x
  2. Step 2: Convert to fraction form
    573,417.36/791,336.25 = 315,313.97/x
  3. Step 3: Cross multiply
    573,417.36x = 791,336.25 × 315,313.97
  4. Step 4: Simplify right side
    573,417.36x = 249,519,370,635.73
  5. Step 5: Solve for x
    x = 249,519,370,635.73/573,417.36
  6. Step 6: Final answer
    x = 435,144.43

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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.