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Finding the Fourth Proportional to 926,679, 1,278,808.38 and 524,271

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Solution

The fourth proportional to 926,679, 1,278,808.38 and 524,271 is: 723,489.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,679 : 1,278,808.38 = 524,271 : x
  2. Step 2: Convert to fraction form
    926,679/1,278,808.38 = 524,271/x
  3. Step 3: Cross multiply
    926,679x = 1,278,808.38 × 524,271
  4. Step 4: Simplify right side
    926,679x = 670,442,148,190.98
  5. Step 5: Solve for x
    x = 670,442,148,190.98/926,679
  6. Step 6: Final answer
    x = 723,489.09

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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.