Home / 627,085.20-865,387.62-340,605.48

Finding the Fourth Proportional to 627,085.20, 865,387.62 and 340,605.48

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Solution

The fourth proportional to 627,085.20, 865,387.62 and 340,605.48 is: 470,041.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,085.20 : 865,387.62 = 340,605.48 : x
  2. Step 2: Convert to fraction form
    627,085.20/865,387.62 = 340,605.48/x
  3. Step 3: Cross multiply
    627,085.20x = 865,387.62 × 340,605.48
  4. Step 4: Simplify right side
    627,085.20x = 294,755,765,696.16
  5. Step 5: Solve for x
    x = 294,755,765,696.16/627,085.20
  6. Step 6: Final answer
    x = 470,041.02

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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.