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Finding the Fourth Proportional to 571,481.73, 788,653.86 and 313,382.16

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Solution

The fourth proportional to 571,481.73, 788,653.86 and 313,382.16 is: 432,472.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,481.73 : 788,653.86 = 313,382.16 : x
  2. Step 2: Convert to fraction form
    571,481.73/788,653.86 = 313,382.16/x
  3. Step 3: Cross multiply
    571,481.73x = 788,653.86 × 313,382.16
  4. Step 4: Simplify right side
    571,481.73x = 247,150,050,139.14
  5. Step 5: Solve for x
    x = 247,150,050,139.14/571,481.73
  6. Step 6: Final answer
    x = 432,472.36

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1.5x scale

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.