Home / 985,561.60-1,478,342.40-810,601.60

Finding the Fourth Proportional to 985,561.60, 1,478,342.40 and 810,601.60

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Solution

The fourth proportional to 985,561.60, 1,478,342.40 and 810,601.60 is: 1,215,902.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,561.60 : 1,478,342.40 = 810,601.60 : x
  2. Step 2: Convert to fraction form
    985,561.60/1,478,342.40 = 810,601.60/x
  3. Step 3: Cross multiply
    985,561.60x = 1,478,342.40 × 810,601.60
  4. Step 4: Simplify right side
    985,561.60x = 1,198,346,714,787.84
  5. Step 5: Solve for x
    x = 1,198,346,714,787.84/985,561.60
  6. Step 6: Final answer
    x = 1,215,902.40

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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.