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Finding the Fourth Proportional to 5,271,886, 7,907,829 and 1,282,798

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Solution

The fourth proportional to 5,271,886, 7,907,829 and 1,282,798 is: 1,924,197

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271,886 : 7,907,829 = 1,282,798 : x
  2. Step 2: Convert to fraction form
    5,271,886/7,907,829 = 1,282,798/x
  3. Step 3: Cross multiply
    5,271,886x = 7,907,829 × 1,282,798
  4. Step 4: Simplify right side
    5,271,886x = 10,144,147,225,542
  5. Step 5: Solve for x
    x = 10,144,147,225,542/5,271,886
  6. Step 6: Final answer
    x = 1,924,197

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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.