Home / 1,050,415.20-1,576,011.60-419,781.60

Finding the Fourth Proportional to 1,050,415.20, 1,576,011.60 and 419,781.60

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Solution

The fourth proportional to 1,050,415.20, 1,576,011.60 and 419,781.60 is: 629,827.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,050,415.20 : 1,576,011.60 = 419,781.60 : x
  2. Step 2: Convert to fraction form
    1,050,415.20/1,576,011.60 = 419,781.60/x
  3. Step 3: Cross multiply
    1,050,415.20x = 1,576,011.60 × 419,781.60
  4. Step 4: Simplify right side
    1,050,415.20x = 661,580,671,066.56
  5. Step 5: Solve for x
    x = 661,580,671,066.56/1,050,415.20
  6. Step 6: Final answer
    x = 629,827.78

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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.