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Finding the Fourth Proportional to 782,334.72, 1,173,443.76 and 249,912

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Solution

The fourth proportional to 782,334.72, 1,173,443.76 and 249,912 is: 374,849.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,334.72 : 1,173,443.76 = 249,912 : x
  2. Step 2: Convert to fraction form
    782,334.72/1,173,443.76 = 249,912/x
  3. Step 3: Cross multiply
    782,334.72x = 1,173,443.76 × 249,912
  4. Step 4: Simplify right side
    782,334.72x = 293,257,676,949.12
  5. Step 5: Solve for x
    x = 293,257,676,949.12/782,334.72
  6. Step 6: Final answer
    x = 374,849.37

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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.