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Finding the Fourth Proportional to 627,814.80, 942,240.60 and 291,373.20

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Solution

The fourth proportional to 627,814.80, 942,240.60 and 291,373.20 is: 437,300.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,814.80 : 942,240.60 = 291,373.20 : x
  2. Step 2: Convert to fraction form
    627,814.80/942,240.60 = 291,373.20/x
  3. Step 3: Cross multiply
    627,814.80x = 942,240.60 × 291,373.20
  4. Step 4: Simplify right side
    627,814.80x = 274,543,658,791.92
  5. Step 5: Solve for x
    x = 274,543,658,791.92/627,814.80
  6. Step 6: Final answer
    x = 437,300.39

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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.