Home / 571,881.18-857,827.90-172,525.40

Finding the Fourth Proportional to 571,881.18, 857,827.90 and 172,525.40

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Solution

The fourth proportional to 571,881.18, 857,827.90 and 172,525.40 is: 258,789.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,881.18 : 857,827.90 = 172,525.40 : x
  2. Step 2: Convert to fraction form
    571,881.18/857,827.90 = 172,525.40/x
  3. Step 3: Cross multiply
    571,881.18x = 857,827.90 × 172,525.40
  4. Step 4: Simplify right side
    571,881.18x = 147,997,101,578.66
  5. Step 5: Solve for x
    x = 147,997,101,578.66/571,881.18
  6. Step 6: Final answer
    x = 258,789.95

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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.