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Finding the Fourth Proportional to 509,422.76, 702,999.78 and 276,847.94

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Solution

The fourth proportional to 509,422.76, 702,999.78 and 276,847.94 is: 382,048.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,422.76 : 702,999.78 = 276,847.94 : x
  2. Step 2: Convert to fraction form
    509,422.76/702,999.78 = 276,847.94/x
  3. Step 3: Cross multiply
    509,422.76x = 702,999.78 × 276,847.94
  4. Step 4: Simplify right side
    509,422.76x = 194,624,040,913.45
  5. Step 5: Solve for x
    x = 194,624,040,913.45/509,422.76
  6. Step 6: Final answer
    x = 382,048.19

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1.5x scale

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.