Home / 743,505.56-1,115,282.57-353,927.48

Finding the Fourth Proportional to 743,505.56, 1,115,282.57 and 353,927.48

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Solution

The fourth proportional to 743,505.56, 1,115,282.57 and 353,927.48 is: 530,902.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,505.56 : 1,115,282.57 = 353,927.48 : x
  2. Step 2: Convert to fraction form
    743,505.56/1,115,282.57 = 353,927.48/x
  3. Step 3: Cross multiply
    743,505.56x = 1,115,282.57 × 353,927.48
  4. Step 4: Simplify right side
    743,505.56x = 394,729,144,132.82
  5. Step 5: Solve for x
    x = 394,729,144,132.82/743,505.56
  6. Step 6: Final answer
    x = 530,902.75

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1.5x scale

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.