Home / 613,981.40-920,951.28-187,499.97

Finding the Fourth Proportional to 613,981.40, 920,951.28 and 187,499.97

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Solution

The fourth proportional to 613,981.40, 920,951.28 and 187,499.97 is: 281,243.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,981.40 : 920,951.28 = 187,499.97 : x
  2. Step 2: Convert to fraction form
    613,981.40/920,951.28 = 187,499.97/x
  3. Step 3: Cross multiply
    613,981.40x = 920,951.28 × 187,499.97
  4. Step 4: Simplify right side
    613,981.40x = 172,678,337,371.46
  5. Step 5: Solve for x
    x = 172,678,337,371.46/613,981.40
  6. Step 6: Final answer
    x = 281,243.60

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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.