Home / 756,980.40-1,135,446-307,568.40

Finding the Fourth Proportional to 756,980.40, 1,135,446 and 307,568.40

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Solution

The fourth proportional to 756,980.40, 1,135,446 and 307,568.40 is: 461,342.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,980.40 : 1,135,446 = 307,568.40 : x
  2. Step 2: Convert to fraction form
    756,980.40/1,135,446 = 307,568.40/x
  3. Step 3: Cross multiply
    756,980.40x = 1,135,446 × 307,568.40
  4. Step 4: Simplify right side
    756,980.40x = 349,227,309,506.40
  5. Step 5: Solve for x
    x = 349,227,309,506.40/756,980.40
  6. Step 6: Final answer
    x = 461,342.60

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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.