Home / 571,868.78-857,809.32-172,513.01

Finding the Fourth Proportional to 571,868.78, 857,809.32 and 172,513.01

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Solution

The fourth proportional to 571,868.78, 857,809.32 and 172,513.01 is: 258,771.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,868.78 : 857,809.32 = 172,513.01 : x
  2. Step 2: Convert to fraction form
    571,868.78/857,809.32 = 172,513.01/x
  3. Step 3: Cross multiply
    571,868.78x = 857,809.32 × 172,513.01
  4. Step 4: Simplify right side
    571,868.78x = 147,983,266,936.69
  5. Step 5: Solve for x
    x = 147,983,266,936.69/571,868.78
  6. Step 6: Final answer
    x = 258,771.37

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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.