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Finding the Fourth Proportional to 626,999.10, 940,109.85 and 360,627.90

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Solution

The fourth proportional to 626,999.10, 940,109.85 and 360,627.90 is: 540,718.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,999.10 : 940,109.85 = 360,627.90 : x
  2. Step 2: Convert to fraction form
    626,999.10/940,109.85 = 360,627.90/x
  3. Step 3: Cross multiply
    626,999.10x = 940,109.85 × 360,627.90
  4. Step 4: Simplify right side
    626,999.10x = 339,029,840,974.82
  5. Step 5: Solve for x
    x = 339,029,840,974.82/626,999.10
  6. Step 6: Final answer
    x = 540,718.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.