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Finding the Fourth Proportional to 571,383.14, 788,515.14 and 326,400.33

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Solution

The fourth proportional to 571,383.14, 788,515.14 and 326,400.33 is: 450,436.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,383.14 : 788,515.14 = 326,400.33 : x
  2. Step 2: Convert to fraction form
    571,383.14/788,515.14 = 326,400.33/x
  3. Step 3: Cross multiply
    571,383.14x = 788,515.14 × 326,400.33
  4. Step 4: Simplify right side
    571,383.14x = 257,371,601,906.00
  5. Step 5: Solve for x
    x = 257,371,601,906.00/571,383.14
  6. Step 6: Final answer
    x = 450,436.12

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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.