Home / 571,905.78-857,580.75-172,472.10

Finding the Fourth Proportional to 571,905.78, 857,580.75 and 172,472.10

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Solution

The fourth proportional to 571,905.78, 857,580.75 and 172,472.10 is: 258,624.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,905.78 : 857,580.75 = 172,472.10 : x
  2. Step 2: Convert to fraction form
    571,905.78/857,580.75 = 172,472.10/x
  3. Step 3: Cross multiply
    571,905.78x = 857,580.75 × 172,472.10
  4. Step 4: Simplify right side
    571,905.78x = 147,908,752,872.08
  5. Step 5: Solve for x
    x = 147,908,752,872.08/571,905.78
  6. Step 6: Final answer
    x = 258,624.34

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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.