Home / 854,116.50-1,178,694.78-509,982.50

Finding the Fourth Proportional to 854,116.50, 1,178,694.78 and 509,982.50

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Solution

The fourth proportional to 854,116.50, 1,178,694.78 and 509,982.50 is: 703,784.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,116.50 : 1,178,694.78 = 509,982.50 : x
  2. Step 2: Convert to fraction form
    854,116.50/1,178,694.78 = 509,982.50/x
  3. Step 3: Cross multiply
    854,116.50x = 1,178,694.78 × 509,982.50
  4. Step 4: Simplify right side
    854,116.50x = 601,113,704,747.88
  5. Step 5: Solve for x
    x = 601,113,704,747.88/854,116.50
  6. Step 6: Final answer
    x = 703,784.21

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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.