Home / 628,963.73-867,973.37-342,483.90

Finding the Fourth Proportional to 628,963.73, 867,973.37 and 342,483.90

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Solution

The fourth proportional to 628,963.73, 867,973.37 and 342,483.90 is: 472,629.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,963.73 : 867,973.37 = 342,483.90 : x
  2. Step 2: Convert to fraction form
    628,963.73/867,973.37 = 342,483.90/x
  3. Step 3: Cross multiply
    628,963.73x = 867,973.37 × 342,483.90
  4. Step 4: Simplify right side
    628,963.73x = 297,266,901,812.90
  5. Step 5: Solve for x
    x = 297,266,901,812.90/628,963.73
  6. Step 6: Final answer
    x = 472,629.64

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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.