Home / 571,969.15-857,789.70-172,513.60

Finding the Fourth Proportional to 571,969.15, 857,789.70 and 172,513.60

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Solution

The fourth proportional to 571,969.15, 857,789.70 and 172,513.60 is: 258,720.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,969.15 : 857,789.70 = 172,513.60 : x
  2. Step 2: Convert to fraction form
    571,969.15/857,789.70 = 172,513.60/x
  3. Step 3: Cross multiply
    571,969.15x = 857,789.70 × 172,513.60
  4. Step 4: Simplify right side
    571,969.15x = 147,980,389,189.92
  5. Step 5: Solve for x
    x = 147,980,389,189.92/571,969.15
  6. Step 6: Final answer
    x = 258,720.93

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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.