Home / 647,827.79-970,828.25-305,906.39

Finding the Fourth Proportional to 647,827.79, 970,828.25 and 305,906.39

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Solution

The fourth proportional to 647,827.79, 970,828.25 and 305,906.39 is: 458,428.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,827.79 : 970,828.25 = 305,906.39 : x
  2. Step 2: Convert to fraction form
    647,827.79/970,828.25 = 305,906.39/x
  3. Step 3: Cross multiply
    647,827.79x = 970,828.25 × 305,906.39
  4. Step 4: Simplify right side
    647,827.79x = 296,982,558,883.84
  5. Step 5: Solve for x
    x = 296,982,558,883.84/647,827.79
  6. Step 6: Final answer
    x = 458,428.25

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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.