Home / 743,457.75-1,115,747.46-344,378.52

Finding the Fourth Proportional to 743,457.75, 1,115,747.46 and 344,378.52

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Solution

The fourth proportional to 743,457.75, 1,115,747.46 and 344,378.52 is: 516,827.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,457.75 : 1,115,747.46 = 344,378.52 : x
  2. Step 2: Convert to fraction form
    743,457.75/1,115,747.46 = 344,378.52/x
  3. Step 3: Cross multiply
    743,457.75x = 1,115,747.46 × 344,378.52
  4. Step 4: Simplify right side
    743,457.75x = 384,239,458,968.56
  5. Step 5: Solve for x
    x = 384,239,458,968.56/743,457.75
  6. Step 6: Final answer
    x = 516,827.57

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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.