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Finding the Fourth Proportional to 926,642, 1,278,757.32 and 524,234

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Solution

The fourth proportional to 926,642, 1,278,757.32 and 524,234 is: 723,438.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,642 : 1,278,757.32 = 524,234 : x
  2. Step 2: Convert to fraction form
    926,642/1,278,757.32 = 524,234/x
  3. Step 3: Cross multiply
    926,642x = 1,278,757.32 × 524,234
  4. Step 4: Simplify right side
    926,642x = 670,368,064,892.88
  5. Step 5: Solve for x
    x = 670,368,064,892.88/926,642
  6. Step 6: Final answer
    x = 723,438.03

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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.