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Finding the Fourth Proportional to 571,416.54, 788,443.77 and 338,800.49

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Solution

The fourth proportional to 571,416.54, 788,443.77 and 338,800.49 is: 467,478.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,416.54 : 788,443.77 = 338,800.49 : x
  2. Step 2: Convert to fraction form
    571,416.54/788,443.77 = 338,800.49/x
  3. Step 3: Cross multiply
    571,416.54x = 788,443.77 × 338,800.49
  4. Step 4: Simplify right side
    571,416.54x = 267,125,131,671.23
  5. Step 5: Solve for x
    x = 267,125,131,671.23/571,416.54
  6. Step 6: Final answer
    x = 467,478.82

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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.