Home / 719,317.86-1,078,632.54-339,921.96

Finding the Fourth Proportional to 719,317.86, 1,078,632.54 and 339,921.96

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Solution

The fourth proportional to 719,317.86, 1,078,632.54 and 339,921.96 is: 509,720.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,317.86 : 1,078,632.54 = 339,921.96 : x
  2. Step 2: Convert to fraction form
    719,317.86/1,078,632.54 = 339,921.96/x
  3. Step 3: Cross multiply
    719,317.86x = 1,078,632.54 × 339,921.96
  4. Step 4: Simplify right side
    719,317.86x = 366,650,887,116.58
  5. Step 5: Solve for x
    x = 366,650,887,116.58/719,317.86
  6. Step 6: Final answer
    x = 509,720.26

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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.