Home / 547,749.40-821,624.10-192,760.60

Finding the Fourth Proportional to 547,749.40, 821,624.10 and 192,760.60

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Solution

The fourth proportional to 547,749.40, 821,624.10 and 192,760.60 is: 289,140.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,749.40 : 821,624.10 = 192,760.60 : x
  2. Step 2: Convert to fraction form
    547,749.40/821,624.10 = 192,760.60/x
  3. Step 3: Cross multiply
    547,749.40x = 821,624.10 × 192,760.60
  4. Step 4: Simplify right side
    547,749.40x = 158,376,754,490.46
  5. Step 5: Solve for x
    x = 158,376,754,490.46/547,749.40
  6. Step 6: Final answer
    x = 289,140.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.