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Finding the Fourth Proportional to 769,682.68, 1,154,035 and 675,102.80

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Solution

The fourth proportional to 769,682.68, 1,154,035 and 675,102.80 is: 1,012,225.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,682.68 : 1,154,035 = 675,102.80 : x
  2. Step 2: Convert to fraction form
    769,682.68/1,154,035 = 675,102.80/x
  3. Step 3: Cross multiply
    769,682.68x = 1,154,035 × 675,102.80
  4. Step 4: Simplify right side
    769,682.68x = 779,092,259,798
  5. Step 5: Solve for x
    x = 779,092,259,798/769,682.68
  6. Step 6: Final answer
    x = 1,012,225.27

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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.