Home / 429,601.40-643,872.86-176,724.06

Finding the Fourth Proportional to 429,601.40, 643,872.86 and 176,724.06

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Solution

The fourth proportional to 429,601.40, 643,872.86 and 176,724.06 is: 264,868.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,601.40 : 643,872.86 = 176,724.06 : x
  2. Step 2: Convert to fraction form
    429,601.40/643,872.86 = 176,724.06/x
  3. Step 3: Cross multiply
    429,601.40x = 643,872.86 × 176,724.06
  4. Step 4: Simplify right side
    429,601.40x = 113,787,825,943.01
  5. Step 5: Solve for x
    x = 113,787,825,943.01/429,601.40
  6. Step 6: Final answer
    x = 264,868.38

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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.