Home / 746,749.89-1,120,955.74-386,824.70

Finding the Fourth Proportional to 746,749.89, 1,120,955.74 and 386,824.70

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Solution

The fourth proportional to 746,749.89, 1,120,955.74 and 386,824.70 is: 580,667.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,749.89 : 1,120,955.74 = 386,824.70 : x
  2. Step 2: Convert to fraction form
    746,749.89/1,120,955.74 = 386,824.70/x
  3. Step 3: Cross multiply
    746,749.89x = 1,120,955.74 × 386,824.70
  4. Step 4: Simplify right side
    746,749.89x = 433,613,369,674.11
  5. Step 5: Solve for x
    x = 433,613,369,674.11/746,749.89
  6. Step 6: Final answer
    x = 580,667.47

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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.