Home / 691,472.37-954,161.98-385,520.02

Finding the Fourth Proportional to 691,472.37, 954,161.98 and 385,520.02

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Solution

The fourth proportional to 691,472.37, 954,161.98 and 385,520.02 is: 531,978.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,472.37 : 954,161.98 = 385,520.02 : x
  2. Step 2: Convert to fraction form
    691,472.37/954,161.98 = 385,520.02/x
  3. Step 3: Cross multiply
    691,472.37x = 954,161.98 × 385,520.02
  4. Step 4: Simplify right side
    691,472.37x = 367,848,545,612.84
  5. Step 5: Solve for x
    x = 367,848,545,612.84/691,472.37
  6. Step 6: Final answer
    x = 531,978.66

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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.