Home / 429,600.40-643,871.36-176,723.06

Finding the Fourth Proportional to 429,600.40, 643,871.36 and 176,723.06

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Solution

The fourth proportional to 429,600.40, 643,871.36 and 176,723.06 is: 264,866.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,600.40 : 643,871.36 = 176,723.06 : x
  2. Step 2: Convert to fraction form
    429,600.40/643,871.36 = 176,723.06/x
  3. Step 3: Cross multiply
    429,600.40x = 643,871.36 × 176,723.06
  4. Step 4: Simplify right side
    429,600.40x = 113,786,914,208.01
  5. Step 5: Solve for x
    x = 113,786,914,208.01/429,600.40
  6. Step 6: Final answer
    x = 264,866.87

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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.