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Finding the Fourth Proportional to 626,998.60, 940,109.10 and 360,627.40

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Solution

The fourth proportional to 626,998.60, 940,109.10 and 360,627.40 is: 540,717.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,998.60 : 940,109.10 = 360,627.40 : x
  2. Step 2: Convert to fraction form
    626,998.60/940,109.10 = 360,627.40/x
  3. Step 3: Cross multiply
    626,998.60x = 940,109.10 × 360,627.40
  4. Step 4: Simplify right side
    626,998.60x = 339,029,100,449.34
  5. Step 5: Solve for x
    x = 339,029,100,449.34/626,998.60
  6. Step 6: Final answer
    x = 540,717.48

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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.