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Finding the Fourth Proportional to 571,887.28, 857,553 and 172,453.60

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Solution

The fourth proportional to 571,887.28, 857,553 and 172,453.60 is: 258,596.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,887.28 : 857,553 = 172,453.60 : x
  2. Step 2: Convert to fraction form
    571,887.28/857,553 = 172,453.60/x
  3. Step 3: Cross multiply
    571,887.28x = 857,553 × 172,453.60
  4. Step 4: Simplify right side
    571,887.28x = 147,888,102,040.80
  5. Step 5: Solve for x
    x = 147,888,102,040.80/571,887.28
  6. Step 6: Final answer
    x = 258,596.59

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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.