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Finding the Fourth Proportional to 898,889.60, 1,348,917.60 and 519,809.60

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Solution

The fourth proportional to 898,889.60, 1,348,917.60 and 519,809.60 is: 780,051.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,889.60 : 1,348,917.60 = 519,809.60 : x
  2. Step 2: Convert to fraction form
    898,889.60/1,348,917.60 = 519,809.60/x
  3. Step 3: Cross multiply
    898,889.60x = 1,348,917.60 × 519,809.60
  4. Step 4: Simplify right side
    898,889.60x = 701,180,318,088.96
  5. Step 5: Solve for x
    x = 701,180,318,088.96/898,889.60
  6. Step 6: Final answer
    x = 780,051.65

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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.