Home / 571,787.10-857,403.36-172,353.42

Finding the Fourth Proportional to 571,787.10, 857,403.36 and 172,353.42

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Solution

The fourth proportional to 571,787.10, 857,403.36 and 172,353.42 is: 258,446.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,787.10 : 857,403.36 = 172,353.42 : x
  2. Step 2: Convert to fraction form
    571,787.10/857,403.36 = 172,353.42/x
  3. Step 3: Cross multiply
    571,787.10x = 857,403.36 × 172,353.42
  4. Step 4: Simplify right side
    571,787.10x = 147,776,401,415.49
  5. Step 5: Solve for x
    x = 147,776,401,415.49/571,787.10
  6. Step 6: Final answer
    x = 258,446.55

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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.