Home / 808,204.20-1,213,040.70-409,122.60

Finding the Fourth Proportional to 808,204.20, 1,213,040.70 and 409,122.60

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Solution

The fourth proportional to 808,204.20, 1,213,040.70 and 409,122.60 is: 614,055.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,204.20 : 1,213,040.70 = 409,122.60 : x
  2. Step 2: Convert to fraction form
    808,204.20/1,213,040.70 = 409,122.60/x
  3. Step 3: Cross multiply
    808,204.20x = 1,213,040.70 × 409,122.60
  4. Step 4: Simplify right side
    808,204.20x = 496,282,365,089.82
  5. Step 5: Solve for x
    x = 496,282,365,089.82/808,204.20
  6. Step 6: Final answer
    x = 614,055.66

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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.