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Finding the Fourth Proportional to 691,577.73, 954,381.44 and 385,673.45

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Solution

The fourth proportional to 691,577.73, 954,381.44 and 385,673.45 is: 532,231.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,577.73 : 954,381.44 = 385,673.45 : x
  2. Step 2: Convert to fraction form
    691,577.73/954,381.44 = 385,673.45/x
  3. Step 3: Cross multiply
    691,577.73x = 954,381.44 × 385,673.45
  4. Step 4: Simplify right side
    691,577.73x = 368,079,575,880.49
  5. Step 5: Solve for x
    x = 368,079,575,880.49/691,577.73
  6. Step 6: Final answer
    x = 532,231.68

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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.