Home / 854,115.38-1,178,693.22-509,981.37

Finding the Fourth Proportional to 854,115.38, 1,178,693.22 and 509,981.37

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Solution

The fourth proportional to 854,115.38, 1,178,693.22 and 509,981.37 is: 703,782.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,115.38 : 1,178,693.22 = 509,981.37 : x
  2. Step 2: Convert to fraction form
    854,115.38/1,178,693.22 = 509,981.37/x
  3. Step 3: Cross multiply
    854,115.38x = 1,178,693.22 × 509,981.37
  4. Step 4: Simplify right side
    854,115.38x = 601,111,583,145.31
  5. Step 5: Solve for x
    x = 601,111,583,145.31/854,115.38
  6. Step 6: Final answer
    x = 703,782.65

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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.