Home / 743,455.76-1,115,744.48-344,376.52

Finding the Fourth Proportional to 743,455.76, 1,115,744.48 and 344,376.52

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Solution

The fourth proportional to 743,455.76, 1,115,744.48 and 344,376.52 is: 516,824.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,455.76 : 1,115,744.48 = 344,376.52 : x
  2. Step 2: Convert to fraction form
    743,455.76/1,115,744.48 = 344,376.52/x
  3. Step 3: Cross multiply
    743,455.76x = 1,115,744.48 × 344,376.52
  4. Step 4: Simplify right side
    743,455.76x = 384,236,201,231.61
  5. Step 5: Solve for x
    x = 384,236,201,231.61/743,455.76
  6. Step 6: Final answer
    x = 516,824.57

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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.