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Finding the Fourth Proportional to 571,707.74, 788,951.21 and 313,579.33

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Solution

The fourth proportional to 571,707.74, 788,951.21 and 313,579.33 is: 432,736.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,707.74 : 788,951.21 = 313,579.33 : x
  2. Step 2: Convert to fraction form
    571,707.74/788,951.21 = 313,579.33/x
  3. Step 3: Cross multiply
    571,707.74x = 788,951.21 × 313,579.33
  4. Step 4: Simplify right side
    571,707.74x = 247,398,788,294.22
  5. Step 5: Solve for x
    x = 247,398,788,294.22/571,707.74
  6. Step 6: Final answer
    x = 432,736.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.