Home / 739,849.34-1,109,890.08-313,386.39

Finding the Fourth Proportional to 739,849.34, 1,109,890.08 and 313,386.39

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Solution

The fourth proportional to 739,849.34, 1,109,890.08 and 313,386.39 is: 470,128.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,849.34 : 1,109,890.08 = 313,386.39 : x
  2. Step 2: Convert to fraction form
    739,849.34/1,109,890.08 = 313,386.39/x
  3. Step 3: Cross multiply
    739,849.34x = 1,109,890.08 × 313,386.39
  4. Step 4: Simplify right side
    739,849.34x = 347,824,449,911.69
  5. Step 5: Solve for x
    x = 347,824,449,911.69/739,849.34
  6. Step 6: Final answer
    x = 470,128.75

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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.