Home / 771,414.60-1,157,296.38-416,421

Finding the Fourth Proportional to 771,414.60, 1,157,296.38 and 416,421

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Solution

The fourth proportional to 771,414.60, 1,157,296.38 and 416,421 is: 624,725.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,414.60 : 1,157,296.38 = 416,421 : x
  2. Step 2: Convert to fraction form
    771,414.60/1,157,296.38 = 416,421/x
  3. Step 3: Cross multiply
    771,414.60x = 1,157,296.38 × 416,421
  4. Step 4: Simplify right side
    771,414.60x = 481,922,515,855.98
  5. Step 5: Solve for x
    x = 481,922,515,855.98/771,414.60
  6. Step 6: Final answer
    x = 624,725.69

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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.