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Finding the Fourth Proportional to 652,240.70, 978,361.05 and 534,142.70

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Solution

The fourth proportional to 652,240.70, 978,361.05 and 534,142.70 is: 801,214.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,240.70 : 978,361.05 = 534,142.70 : x
  2. Step 2: Convert to fraction form
    652,240.70/978,361.05 = 534,142.70/x
  3. Step 3: Cross multiply
    652,240.70x = 978,361.05 × 534,142.70
  4. Step 4: Simplify right side
    652,240.70x = 522,584,412,821.84
  5. Step 5: Solve for x
    x = 522,584,412,821.84/652,240.70
  6. Step 6: Final answer
    x = 801,214.05

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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.