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Finding the Fourth Proportional to 514,802.88, 771,744.99 and 261,941.94

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Solution

The fourth proportional to 514,802.88, 771,744.99 and 261,941.94 is: 392,679.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,802.88 : 771,744.99 = 261,941.94 : x
  2. Step 2: Convert to fraction form
    514,802.88/771,744.99 = 261,941.94/x
  3. Step 3: Cross multiply
    514,802.88x = 771,744.99 × 261,941.94
  4. Step 4: Simplify right side
    514,802.88x = 202,152,379,865.88
  5. Step 5: Solve for x
    x = 202,152,379,865.88/514,802.88
  6. Step 6: Final answer
    x = 392,679.19

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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.