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Finding the Fourth Proportional to 624,592.80, 936,264.24 and 287,876.88

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Solution

The fourth proportional to 624,592.80, 936,264.24 and 287,876.88 is: 431,527.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,592.80 : 936,264.24 = 287,876.88 : x
  2. Step 2: Convert to fraction form
    624,592.80/936,264.24 = 287,876.88/x
  3. Step 3: Cross multiply
    624,592.80x = 936,264.24 × 287,876.88
  4. Step 4: Simplify right side
    624,592.80x = 269,528,828,266.77
  5. Step 5: Solve for x
    x = 269,528,828,266.77/624,592.80
  6. Step 6: Final answer
    x = 431,527.27

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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.