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Finding the Fourth Proportional to 626,219.82, 938,559.87 and 288,792

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Solution

The fourth proportional to 626,219.82, 938,559.87 and 288,792 is: 432,832.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,219.82 : 938,559.87 = 288,792 : x
  2. Step 2: Convert to fraction form
    626,219.82/938,559.87 = 288,792/x
  3. Step 3: Cross multiply
    626,219.82x = 938,559.87 × 288,792
  4. Step 4: Simplify right side
    626,219.82x = 271,048,581,977.04
  5. Step 5: Solve for x
    x = 271,048,581,977.04/626,219.82
  6. Step 6: Final answer
    x = 432,832.97

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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.