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Finding the Fourth Proportional to 605,249.60, 907,874.40 and 538,894.40

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Solution

The fourth proportional to 605,249.60, 907,874.40 and 538,894.40 is: 808,341.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,249.60 : 907,874.40 = 538,894.40 : x
  2. Step 2: Convert to fraction form
    605,249.60/907,874.40 = 538,894.40/x
  3. Step 3: Cross multiply
    605,249.60x = 907,874.40 × 538,894.40
  4. Step 4: Simplify right side
    605,249.60x = 489,248,430,063.36
  5. Step 5: Solve for x
    x = 489,248,430,063.36/605,249.60
  6. Step 6: Final answer
    x = 808,341.60

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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.