Home / 627,090.70-865,395.22-340,610.98

Finding the Fourth Proportional to 627,090.70, 865,395.22 and 340,610.98

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Solution

The fourth proportional to 627,090.70, 865,395.22 and 340,610.98 is: 470,048.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,090.70 : 865,395.22 = 340,610.98 : x
  2. Step 2: Convert to fraction form
    627,090.70/865,395.22 = 340,610.98/x
  3. Step 3: Cross multiply
    627,090.70x = 865,395.22 × 340,610.98
  4. Step 4: Simplify right side
    627,090.70x = 294,763,113,971.52
  5. Step 5: Solve for x
    x = 294,763,113,971.52/627,090.70
  6. Step 6: Final answer
    x = 470,048.61

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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.