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Finding the Fourth Proportional to 788,353.89, 1,087,929.42 and 448,822.14

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Solution

The fourth proportional to 788,353.89, 1,087,929.42 and 448,822.14 is: 619,375.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,353.89 : 1,087,929.42 = 448,822.14 : x
  2. Step 2: Convert to fraction form
    788,353.89/1,087,929.42 = 448,822.14/x
  3. Step 3: Cross multiply
    788,353.89x = 1,087,929.42 × 448,822.14
  4. Step 4: Simplify right side
    788,353.89x = 488,286,810,453.36
  5. Step 5: Solve for x
    x = 488,286,810,453.36/788,353.89
  6. Step 6: Final answer
    x = 619,375.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.