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Finding the Fourth Proportional to 573,022.30, 858,905.70 and 288,258.70

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Solution

The fourth proportional to 573,022.30, 858,905.70 and 288,258.70 is: 432,072.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,022.30 : 858,905.70 = 288,258.70 : x
  2. Step 2: Convert to fraction form
    573,022.30/858,905.70 = 288,258.70/x
  3. Step 3: Cross multiply
    573,022.30x = 858,905.70 × 288,258.70
  4. Step 4: Simplify right side
    573,022.30x = 247,587,040,504.59
  5. Step 5: Solve for x
    x = 247,587,040,504.59/573,022.30
  6. Step 6: Final answer
    x = 432,072.26

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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.