Home / 627,140.98-865,453.88-340,661.28

Finding the Fourth Proportional to 627,140.98, 865,453.88 and 340,661.28

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Solution

The fourth proportional to 627,140.98, 865,453.88 and 340,661.28 is: 470,112.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    627,140.98 : 865,453.88 = 340,661.28 : x
  2. Step 2: Convert to fraction form
    627,140.98/865,453.88 = 340,661.28/x
  3. Step 3: Cross multiply
    627,140.98x = 865,453.88 × 340,661.28
  4. Step 4: Simplify right side
    627,140.98x = 294,826,626,541.77
  5. Step 5: Solve for x
    x = 294,826,626,541.77/627,140.98
  6. Step 6: Final answer
    x = 470,112.20

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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.