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Finding the Fourth Proportional to 1,271,259, 1,754,493.35 and 734,715

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Solution

The fourth proportional to 1,271,259, 1,754,493.35 and 734,715 is: 1,013,996.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,259 : 1,754,493.35 = 734,715 : x
  2. Step 2: Convert to fraction form
    1,271,259/1,754,493.35 = 734,715/x
  3. Step 3: Cross multiply
    1,271,259x = 1,754,493.35 × 734,715
  4. Step 4: Simplify right side
    1,271,259x = 1,289,052,577,971.68
  5. Step 5: Solve for x
    x = 1,289,052,577,971.68/1,271,259
  6. Step 6: Final answer
    x = 1,013,996.82

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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.