Home / 816,954.29-1,127,317.92-472,721.55

Finding the Fourth Proportional to 816,954.29, 1,127,317.92 and 472,721.55

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Solution

The fourth proportional to 816,954.29, 1,127,317.92 and 472,721.55 is: 652,310.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,954.29 : 1,127,317.92 = 472,721.55 : x
  2. Step 2: Convert to fraction form
    816,954.29/1,127,317.92 = 472,721.55/x
  3. Step 3: Cross multiply
    816,954.29x = 1,127,317.92 × 472,721.55
  4. Step 4: Simplify right side
    816,954.29x = 532,907,474,485.18
  5. Step 5: Solve for x
    x = 532,907,474,485.18/816,954.29
  6. Step 6: Final answer
    x = 652,310.03

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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.