Home / 627,390.50-865,804.36-340,910.58

Finding the Fourth Proportional to 627,390.50, 865,804.36 and 340,910.58

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Solution

The fourth proportional to 627,390.50, 865,804.36 and 340,910.58 is: 470,459.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,390.50 : 865,804.36 = 340,910.58 : x
  2. Step 2: Convert to fraction form
    627,390.50/865,804.36 = 340,910.58/x
  3. Step 3: Cross multiply
    627,390.50x = 865,804.36 × 340,910.58
  4. Step 4: Simplify right side
    627,390.50x = 295,161,866,534.13
  5. Step 5: Solve for x
    x = 295,161,866,534.13/627,390.50
  6. Step 6: Final answer
    x = 470,459.57

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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.