Home / 923,864.50-1,274,936.85-499,928.50

Finding the Fourth Proportional to 923,864.50, 1,274,936.85 and 499,928.50

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Solution

The fourth proportional to 923,864.50, 1,274,936.85 and 499,928.50 is: 689,903.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,864.50 : 1,274,936.85 = 499,928.50 : x
  2. Step 2: Convert to fraction form
    923,864.50/1,274,936.85 = 499,928.50/x
  3. Step 3: Cross multiply
    923,864.50x = 1,274,936.85 × 499,928.50
  4. Step 4: Simplify right side
    923,864.50x = 637,377,267,015.23
  5. Step 5: Solve for x
    x = 637,377,267,015.23/923,864.50
  6. Step 6: Final answer
    x = 689,903.41

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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.